2. Cell Cycle/DNA Damage Antibody-drug Conjugate/ADC Related
  3. DNA Alkylator/Crosslinker ADC Cytotoxin
  4. SJG-136

SJG-136 is a DNA cross-linking agent, with an XL50 of 45 nM for pBR322 DNA. SJG-136 has potent antitumor activity.

For research use only. We do not sell to patients.

SJG-136 Chemical Structure

SJG-136 Chemical Structure

CAS No. : 232931-57-6

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 527 In-stock
Solution
10 mM * 1 mL in DMSO USD 527 In-stock
Solid
1 mg USD 280 In-stock
5 mg USD 430 In-stock
10 mg USD 690 In-stock
25 mg USD 1380 In-stock
50 mg USD 2200 Get quote
100 mg   Get quote  
200 mg   Get quote  

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Customer Review

Based on 2 publication(s) in Google Scholar

SJG-136 Related Antibodies

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  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

SJG-136 is a DNA cross-linking agent, with an XL50 of 45 nM for pBR322 DNA. SJG-136 has potent antitumor activity.

IC50 & Target[1]

Pyrrolobenzodiazepines

 

In Vitro

SJG-136 (dimer 5) is a DNA cross-linking agent, with an XL50 (concentration of agent required for 50% cross-linking of pBR322 DNA) of 45 nM for pBR322 DNA. SJG-136 is cytotoxic to ovarian cell lines, such as A2780 (IC50, 22.5 pM), A2780cisR (IC50, 24 pM), CH1 (IC50, 0.12 nM), CH1cisR (IC50, 0.6 nM), and SKOV-3 (IC50, 9.1 nM)[1]. SJG-136 (SG2000) also reduces the viability of a panel of canine cancer cells, with GI50 values ranging from 0.33 - >100 nM after a 1 h exposure, and <0.03 - 17.33 nM following continuous exposure[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

SJG-136 Related Antibodies
In Vivo

SJG-136 shows more potent antitumor effect against CMeC-1 tumour at 0.30 mg/kg than 0.15 mg/kg either as a single dose or administered once a week for three weeks via dosed intravenously in mice. SJG-136-induced H2AX phosphorylation shows good correspondence, but less sensitivity, than measurement of foci[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Clinical Trial
Molecular Weight

556.61

Formula

C31H32N4O6
CAS No.
Appearance

Solid

Color

Off-white to yellow

SMILES

O=C1N2[C@@H](CC(C2)=C)C=NC3=CC(OCCCOC4=C(OC)C=C(C(N(CC(C5)=C)[C@@H]5C=N6)=O)C6=C4)=C(OC)C=C31
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 33.33 mg/mL (59.88 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.7966 mL 8.9830 mL 17.9659 mL
5 mM 0.3593 mL 1.7966 mL 3.5932 mL
View the 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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

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.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (4.49 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.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: 2.08 mg/mL (3.74 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.08 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
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.
Purity & Documentation

Purity: 99.43%

COA (249 KB) HNMR (369 KB) LCMS (95 KB)

Handling Instructions (2659 KB)
References
Cell Assay
[1]

In vitro cytotoxicity is evaluated using the human ovarian carcinoma cell lines SKOV-3, A2780, and CH1, together with the cisplatin-resistant counterparts of the A2780 and CH1 lines (A2780cisR and CH1cisR, respectively). Viable cells are seeded in growth medium (160 μL) into 96-well microtiter plates and allowed to attach overnight. SJG-136 is dissolved in DMSO (to give a 20 mM concentration in each case) immediately prior to adding to the cells in quadruplicate wells. Final drug concentrations in the wells ranged from 100 μM to 2.5 nM as follows: 100, 25, 10, 2.5, 1 μM, and 250, 100, 25, 10, 2.5 nM. This is achieved by diluting the drugs in growth medium and then adding 40 μL to the existing well volume of 160 μL to give the final concentrations stated above. After 4 days (96 h), the medium is removed and the remaining cells are fixed using 10% trichloroacetic acid on ice for 30 min. Wells are then washed 3−4 times with tap water and air-dried overnight, and 100 μL of 0.4% sulforhodamine B (dissolved in 1% glacial HOAc) is added to each well. Staining is allowed to continue for 10−15 min; the wells are then washed 3−4 times with 1% acetic acid and air-dried, and Tris base (100 μL of 10 mM) is added to each one. The plates are then shaken and absorbance readings taken at 540 nm using a plate reader. From plots of concentration versus percentage absorbance (compared to 8 untreated wells), IC50 values are calculated using the Quattro-Pro software package[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[2]

A homogenous suspension of 5 × 106 exponentially growing canine melanoma cells in serum free RPMI 1640 tissue culture medium is injected subcutaneously into CD1 Nu/Nu immunocompromised female mice. The mice are divided into five groups of ten mice, with equivalent mean tumour volumes for each group. SJG-136 is given intravenously into the tail vein to four of these groups and vehicle control is administered to the fifth group. SJG-136 injections are prepared in 0.9 % NaCl and 1 % DMSO vehicle. Animals are weighed prior to the injection to determine the volume of SJG-136 required (0.1 mL/10 g body weight) which is given IV in the tail vein. Control group mice are given an IV injection of the vehicle solution; mice in groups one and two are given a single treatment of SJG-136, 0.15 mg/kg and 0.30 mg/kg respectively; mice in groups four and five are given 0.15 mg/kg and 0.30 mg/kg respectively, every seven days for a total of three treatments[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
References

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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.7966 mL 8.9830 mL 17.9659 mL 44.9148 mL
5 mM 0.3593 mL 1.7966 mL 3.5932 mL 8.9830 mL
10 mM 0.1797 mL 0.8983 mL 1.7966 mL 4.4915 mL
15 mM 0.1198 mL 0.5989 mL 1.1977 mL 2.9943 mL
20 mM 0.0898 mL 0.4491 mL 0.8983 mL 2.2457 mL
25 mM 0.0719 mL 0.3593 mL 0.7186 mL 1.7966 mL
30 mM 0.0599 mL 0.2994 mL 0.5989 mL 1.4972 mL
40 mM 0.0449 mL 0.2246 mL 0.4491 mL 1.1229 mL
50 mM 0.0359 mL 0.1797 mL 0.3593 mL 0.8983 mL
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SJG-136 Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

SJG-136232931-57-6NSC-694501SJG136SJG 136NSC694501NSC 694501DNA Alkylator/CrosslinkerADC CytotoxinADC PayloadInhibitorinhibitorinhibit

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