AT7519
Based on 16 publication(s) in Google Scholar
AT7519 (AT7519M) as a potent inhibitor of CDKs, with IC50s of 210, 47, 100, 13, 170, and <10 nM for CDK1, CDK2, CDK4 to CDK6, and CDK9, respectively.
For research use only. We do not sell to patients.
- Purity: 99.69%
- CAS No.: 844442-38-2
- Formula: C16H17Cl2N5O2
- Molecular Weight:382.24
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 1 year , -20°C, 6 months
Publications Citing Use of MedChemExpress (MCE) AT7519
More- Sci Transl Med. 2018 Jul 18;10(450):eaaq1093. [Abstract]
- Adv Sci (Weinh). 2024 Mar;11(11):e2305260. [Abstract]
- EMBO Mol Med. 2025 Nov 26. [Abstract]
- Oncogene. 2023 Nov;42(47):3503-3513. [Abstract]
- Cell Chem Biol. 2018 Feb 15;25(2):135-142.e5. [Abstract]
- FASEB J. 2024 Apr 30;38(8):e23628. [Abstract]
- Sci Rep. 2021 Mar 8;11(1):5374. [Abstract]
- RNA Biol. 2021 Nov 12;18(sup2):722-729. [Abstract]
- Glycobiology. 2022 Aug 18;32(9):751-759. [Abstract]
- Mol Carcinog. 2025 Dec 2. [Abstract]
- Exp Eye Res. 2023 Feb:227:109391. [Abstract]
- PLoS One. 2025 Jun 17;20(6):e0324443. [Abstract]
- Dev Biol. 2024 Apr:508:93-106. [Abstract]
- SSRN. 2026 May 20.
- bioRxiv. 2025 Nov 17.
- bioRxiv. 2024 September 07.
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WB
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RT-PCR
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Cell Proliferation/Viability Assay
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IP
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WB
Biological Activity
|
CDK9/Cyclin T 10 nM (IC50) |
CDK5/p35 13 nM (IC50) |
cdk2/cyclin A 47 nM (IC50) |
Cdk4/cyclin D1 100 nM (IC50) |
cdk6/cyclin D3 170 nM (IC50) |
Cdk1/cyclin B 210 nM (IC50) |
CDK7/Cyclin H/MAT1 2400 nM (IC50) |
GSK3β 89 nM (IC50) |
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Cell Line
|
Type | Value | Description | References |
|---|---|---|---|---|
| A2058 | IC50 |
0.166 μM
Compound: AT7519
|
Antiproliferative activity against human A2058 cells assessed as reduction in cell viability measured after 96 hrs by Celltiter-Glo luminescent assay
Antiproliferative activity against human A2058 cells assessed as reduction in cell viability measured after 96 hrs by Celltiter-Glo luminescent assay
|
[PMID: 33611192] |
| A2780 | IC50 |
350 nM
Compound: 33
|
Antiproliferative activity against human A2780 cells assessed as cell viability after 72 hrs by alamar blue assay
Antiproliferative activity against human A2780 cells assessed as cell viability after 72 hrs by alamar blue assay
|
[PMID: 18656911] |
| ASPC1 | IC50 |
533 nM
Compound: AT7519
|
Antiproliferative activity against human AsPC1 cells after 72 hrs by prestoblue assay
Antiproliferative activity against human AsPC1 cells after 72 hrs by prestoblue assay
|
[PMID: 30343954] |
| BXPC-3 | IC50 |
640 nM
Compound: AT7519
|
Antiproliferative activity against human BxPC3 cells after 72 hrs by prestoblue assay
Antiproliferative activity against human BxPC3 cells after 72 hrs by prestoblue assay
|
[PMID: 30343954] |
| HCT-116 | IC50 |
0.082 μM
Compound: 33
|
Antiproliferative activity against human HCT116 cells assessed as cell viability after 72 hrs by alamar blue assay
Antiproliferative activity against human HCT116 cells assessed as cell viability after 72 hrs by alamar blue assay
|
[PMID: 18656911] |
| HCT-116 | IC50 |
80 nM
Compound: AT7519
|
Cytotoxicity against human HCT116 cells assessed as growth inhibition after 72 hrs by Alamar blue assay
Cytotoxicity against human HCT116 cells assessed as growth inhibition after 72 hrs by Alamar blue assay
|
[PMID: 26115571] |
| HCT-116 | IC50 |
132 nM
Compound: AT7519
|
Antiproliferative activity against human HCT116 cells assessed as reduction in cell viability after 72 hrs by cell titer glo-based luminescence assay
Antiproliferative activity against human HCT116 cells assessed as reduction in cell viability after 72 hrs by cell titer glo-based luminescence assay
|
[PMID: 31175010] |
| HL-60 | IC50 |
2.33 μM
Compound: AT7519
|
Antiproliferative activity against human HL-60 cells incubated for 72 hrs by CCK8 assay
Antiproliferative activity against human HL-60 cells incubated for 72 hrs by CCK8 assay
|
[PMID: 36736154] |
| HL-60 | IC50 |
134.77 nM
Compound: AT7519
|
Antiproliferative activity against human HL-60 cells measured after 1 to 3 days by CCK-8 assay
Antiproliferative activity against human HL-60 cells measured after 1 to 3 days by CCK-8 assay
|
[PMID: 38878515] |
| Kasumi 1 | IC50 |
1.48 μM
Compound: AT7519
|
Antiproliferative activity against human Kasumi 1 cells incubated for 72 hrs by CCK8 assay
Antiproliferative activity against human Kasumi 1 cells incubated for 72 hrs by CCK8 assay
|
[PMID: 36736154] |
| MIA PaCa-2 | IC50 |
411 nM
Compound: AT7519
|
Antiproliferative activity against human MIAPaCa2 cells after 72 hrs by prestoblue assay
Antiproliferative activity against human MIAPaCa2 cells after 72 hrs by prestoblue assay
|
[PMID: 30343954] |
| MRC5 | IC50 |
980 nM
Compound: 33
|
Antiproliferative activity against human MRC5 cells assessed as cell viability after 72 hrs by alamar blue assay
Antiproliferative activity against human MRC5 cells assessed as cell viability after 72 hrs by alamar blue assay
|
[PMID: 18656911] |
| MRC5 | IC50 |
>10000 nM
Compound: 33
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Antiproliferative activity against human MRC5 nonprolifreative cells assessed as cell viability after 72 hrs by alamar blue assay
Antiproliferative activity against human MRC5 nonprolifreative cells assessed as cell viability after 72 hrs by alamar blue assay
|
[PMID: 18656911] |
| MRC5 | IC50 |
0.425 μM
Compound: AT7519
|
Cytotoxicity against human MRC5 cells assessed as reduction in cell viability measured after 96 hrs by Celltiter-Glo luminescent assay
Cytotoxicity against human MRC5 cells assessed as reduction in cell viability measured after 96 hrs by Celltiter-Glo luminescent assay
|
[PMID: 33611192] |
| MV4-11 | IC50 |
0.391 μM
Compound: AT7519
|
Antiproliferative activity against human MV4-11 cells assessed as reduction in cell viability measured after 96 hrs by Celltiter-Glo luminescent assay
Antiproliferative activity against human MV4-11 cells assessed as reduction in cell viability measured after 96 hrs by Celltiter-Glo luminescent assay
|
[PMID: 33611192] |
| MV4-11 | IC50 |
0.12 μM
Compound: AT7519; 1
|
Antiproliferative activity against human MV4-11 cells assessed as inhibition of cell growth measured after 48 hrs by MTS assay
Antiproliferative activity against human MV4-11 cells assessed as inhibition of cell growth measured after 48 hrs by MTS assay
|
[PMID: 37465296] |
| PC-3 | IC50 |
0.71 μM
Compound: 1; AT-7519
|
Antiproliferative activity against AR-negative human PC3 cells assessed as reduction in cell viability after 5 days by CCK8 assay
Antiproliferative activity against AR-negative human PC3 cells assessed as reduction in cell viability after 5 days by CCK8 assay
|
[PMID: 31846828] |
| Sf21 | IC50 |
<10 nM
Compound: AT7519
|
Inhibition of recombinant human full-length C-terminal His6-tagged CDK9/human full-length untagged cyclin T1 expressed in baculovirus infected Sf21 insect cells using PDKtide as substrate
Inhibition of recombinant human full-length C-terminal His6-tagged CDK9/human full-length untagged cyclin T1 expressed in baculovirus infected Sf21 insect cells using PDKtide as substrate
|
[PMID: 30543440] |
| Sf21 | IC50 |
210 nM
Compound: AT7519
|
Inhibition of recombinant full-length human C-terminal His6-tagged CDK1/human full-length N-terminal GST-tagged Cyclin B expressed in baculovirus infected Sf21 insect cells using histone H1 as substrate measured after 2 hrs in presence of gamma[32P] ATP b
Inhibition of recombinant full-length human C-terminal His6-tagged CDK1/human full-length N-terminal GST-tagged Cyclin B expressed in baculovirus infected Sf21 insect cells using histone H1 as substrate measured after 2 hrs in presence of gamma[32P] ATP b
|
[PMID: 30543440] |
| Sf21 | IC50 |
2400 nM
Compound: AT7519
|
Inhibition of recombinant human C-terminal His6-tagged full length CDK7/untagged recombinant full length human Cyclin H/N-terminal GST-tagged recombinant full length human MAT1 expressed in baculovirus infected Sf21 insect cells using cdk7 peptide as subs
Inhibition of recombinant human C-terminal His6-tagged full length CDK7/untagged recombinant full length human Cyclin H/N-terminal GST-tagged recombinant full length human MAT1 expressed in baculovirus infected Sf21 insect cells using cdk7 peptide as subs
|
[PMID: 30543440] |
| Sf21 | IC50 |
360 nM
Compound: AT7519
|
Inhibition of recombinant human full-length C-terminal His6-tagged CDK3/full-length human N-terminal GST-tagged Cyclin E expressed in baculovirus infected Sf21 insect cells using histone H1 as substrate
Inhibition of recombinant human full-length C-terminal His6-tagged CDK3/full-length human N-terminal GST-tagged Cyclin E expressed in baculovirus infected Sf21 insect cells using histone H1 as substrate
|
[PMID: 30543440] |
| T-cell | IC50 |
<100 nM
Compound: AT7519
|
Inhibition of CDK9/Cyclin T (unknown origin)
Inhibition of CDK9/Cyclin T (unknown origin)
|
[PMID: 19169685] |
| T-cell | IC50 |
0.01 μM
Compound: 13; AT7519
|
Inhibition of CDK9/Cyclin T (unknown origin)
Inhibition of CDK9/Cyclin T (unknown origin)
|
[PMID: 35485642] |
| U-937 | IC50 |
1.15 μM
Compound: AT7519
|
Antiproliferative activity against human U-937 cells incubated for 72 hrs by CCK8 assay
Antiproliferative activity against human U-937 cells incubated for 72 hrs by CCK8 assay
|
[PMID: 36736154] |
AT7519 (0-4 μM) results in dose-dependent cytotoxicity with IC50s ranging from 0.5 to 2 μM in MM cells, and this induced cytotoxicity is associated with GSK-3β activation independent of transcriptional inhibition. AT7519 overcomes proliferative advantage conferred by cytokines and the protective effect of BMSC. AT7519 (0.5 μM) induces apoptosis of MM cells in a time-dependent manner. Moreover, AT7519 (0.5 μM) inhibits phosphorylation of RNA polymerase II CTD and partially inhibits RNA synthesis in MM.1S cells[1]. AT7519 (250 nM) inhibits cell cycle progression in human tumor cell lines. AT7519 also induces apoptosis of human tumor cell lines[2]. AT7519 (100-700 nM) induces apoptosis in leukemia cell lines. AT7519 also inhibits transcription in human tumor cell lines. Furthermore, AT7519 inhibits RNA polymerase II and reduces antiapoptotic protein levels[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 844442-38-2
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Appearance Solid
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Molecular Weight 382.24
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Formula C16H17Cl2N5O2
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Color White to off-white
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SMILES
O=C(NC1=CNN=C1C(NC2CCNCC2)=O)C3=C(Cl)C=CC=C3Cl
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Synonyms
AT7519M
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 1 year -20°C 6 months
Publications (16)
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Journal Impact Factor
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Most Recent
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Sci Transl Med
PP2A inhibition is a druggable MEK inhibitor resistance mechanism in KRAS-mutant lung cancer cells. [Abstract]2018 Jul 18;10(450):eaaq1093. PMID: 30021885 -
Adv Sci (Weinh)
SHMT2 Mediates Small-Molecule-Induced Alleviation of Alzheimer Pathology Via the 5'UTR-dependent ADAM10 Translation Initiation. [Abstract]2024 Mar;11(11):e2305260. PMID: 38183387
AT7519 purchased from MedChemExpress. Usage Cited in: Adv Sci (Weinh). 2024 Mar;11(11):e2305260. [Abstract]
Chemical structure of another CDK/GSK inhibitor AT7519 (top), and immunoblots (middle) and quantification (bottom) of ADAM10 in SH‐SY5Y cells treated with AT7519 (1 to 20 µM for 36 h, n = 5)
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EMBO Mol Med
Isomeranzin activates Gnas-AMPK signaling to drive white adipose browning and curb obesity in mice. [Abstract]2025 Nov 26. PMID: 41299101 -
Oncogene
D-mannose induces TFE3-dependent lysosomal degradation of EGFR and inhibits the progression of NSCLC. [Abstract]2023 Nov;42(47):3503-3513. PMID: 37845392
AT7519 purchased from MedChemExpress. Usage Cited in: Oncogene. 2023 Nov;42(47):3503-3513. [Abstract]
Western blot analysis of the levels of pGSK3β (S9), GSK3β and EGFR in A549 and PC9 cells treated with AT7519 (0.5 μM, 30 h), DIF-3 (30 μM, 30 h) and D-mannose (25 mM, 24 h) as indicated.
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Cell Chem Biol
2018 Feb 15;25(2):135-142.e5. PMID: 29276047 -
FASEB J
2024 Apr 30;38(8):e23628. PMID: 38661032
AT7519 purchased from MedChemExpress. Usage Cited in: FASEB J. 2024 Apr 30;38(8):e23628. [Abstract]
RT-qPCR data analysis showing the on-target effect of CDK9 inhibition (500 nM AT7519 for 4 h) on MYC mRNA.
AT7519 purchased from MedChemExpress. Usage Cited in: FASEB J. 2024 Apr 30;38(8):e23628. [Abstract]
Cell viability was measured using CellTiter-Glo after 4 days of treatment with mTOR inhibitor (everolimus) in the presence or absence of AT7519 (LNCaP and C4-2: 0.5 μM; 22RV1: 2 μM).
AT7519 purchased from MedChemExpress. Usage Cited in: FASEB J. 2024 Apr 30;38(8):e23628. [Abstract]
LNCaP cells were treated with a CDK9 inhibitor (500 nM AT7519) for 4 h, and wheat germ agglutinin (WGA)-lectin pulldown was used to enrich for proteins O-GlcNAcylated in the given conditions. The data are representative of two biological replicates; OGT is used as a positive control andactin as a negative control in the pulldown samples. For clarity, both long- and short- exposure Western blots of MAVS antibody are shown. Densitometry was used to determine the signal intensities.
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Sci Rep
2021 Mar 8;11(1):5374. PMID: 33686114 -
RNA Biol
2021 Nov 12;18(sup2):722-729. PMID: 34592899 -
Glycobiology
2022 Aug 18;32(9):751-759. PMID: 35708495 -
Mol Carcinog
Purvalanol A Exerts Anti-Hepatocellular Carcinoma Activity by Activating the p53 Pathway. [Abstract]2025 Dec 2. PMID: 41328606 -
Exp Eye Res
2023 Feb:227:109391. PMID: 36696946 -
PLoS One
2025 Jun 17;20(6):e0324443. PMID: 40526635 -
Dev Biol
Neutrophils facilitate the epicardial regenerative response after zebrafish heart injury. [Abstract]2024 Apr:508:93-106. PMID: 38286185 -
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Solvent & Solubility
DMSO : ≥ 50 mg/mL (130.81 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
* "≥" means soluble, but saturation unknown.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (6.54 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (6.54 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Protocol
AT7519's effects on viability of MM cell lines, primary MM cells, and PBMNCs is assessed by measuring 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyl tetrasodium bromide (MTT) dye absorbance. DNA synthesis is measured by tritiated thymidine uptake (3H-TdR). MM cells (2-3 × 104 cells/well) are incubated in 96-well culture plates with media and different concentrations of AT7519 and/or recombinant IL-6 (10 ng/mL) or IGF-1 (50 ng/mL) for 24 or 48 h at 37°C and 3H-TdR incorporation is measured.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
To evaluate the in vivo anti-MM activity of AT7519, male SCID mice are inoculated subcutaneously with 5×106 MM.1S cells in 100 μL serum-free RPMI 1640 medium. When tumors are measurable, mice are treated intraperitoneally (IP) with vehicle or AT7519 dissolved in saline 0.9%. The first group of 10 mice is treated with 15 mg/kg once a day for five days for 2 weeks, and the second group is treated with 15 mg/kg once a day three times a week for four consecutive weeks. The control group receives the carrier alone at the same schedule. Tumor size is measured every alternate day in 2 dimensions using calipers, and tumor volume is calculated with the formula: V= 0.5 a × b2 (a= long diameter of the tumor, b= short diameter of the tumor). Animals are sacrificed when the tumor reaches 2 cm3 or when the tumor is ulcerated. Survival and tumor growth are evaluated from the first day of treatment until death.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (283 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Santo L, et al. AT7519, A novel small molecule multi-cyclin-dependent kinase inhibitor, induces apoptosis in multiple myeloma via GSK-3beta activation and RNA polymerase II inhibition. Oncogene. 2010 Apr 22;29(16):2325-36. [Content Brief]
[2]. Squires MS, et al. Biological characterization of AT7519, a small-molecule inhibitor of cyclin-dependent kinases, in human tumor cell lines. Biological characterization of AT7519, a small-molecule inhibitor of cyclin-dependent kinases, in human tumor cell lines. [Content Brief]
[3]. Squires MS, et al. AT7519, a cyclin-dependent kinase inhibitor, exerts its effects by transcriptional inhibition in leukemia cell lines and patient samples. Mol Cancer Ther. 2010 Apr;9(4):920-8. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.6161 mL | 13.0806 mL | 26.1613 mL | 65.4032 mL |
| 5 mM | 0.5232 mL | 2.6161 mL | 5.2323 mL | 13.0806 mL | |
| 10 mM | 0.2616 mL | 1.3081 mL | 2.6161 mL | 6.5403 mL | |
| 15 mM | 0.1744 mL | 0.8720 mL | 1.7441 mL | 4.3602 mL | |
| 20 mM | 0.1308 mL | 0.6540 mL | 1.3081 mL | 3.2702 mL | |
| 25 mM | 0.1046 mL | 0.5232 mL | 1.0465 mL | 2.6161 mL | |
| 30 mM | 0.0872 mL | 0.4360 mL | 0.8720 mL | 2.1801 mL | |
| 40 mM | 0.0654 mL | 0.3270 mL | 0.6540 mL | 1.6351 mL | |
| 50 mM | 0.0523 mL | 0.2616 mL | 0.5232 mL | 1.3081 mL | |
| 60 mM | 0.0436 mL | 0.2180 mL | 0.4360 mL | 1.0901 mL | |
| 80 mM | 0.0327 mL | 0.1635 mL | 0.3270 mL | 0.8175 mL | |
| 100 mM | 0.0262 mL | 0.1308 mL | 0.2616 mL | 0.6540 mL |