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  2. Biochemical Assay Reagents
  3. Bis-sulfone NHS ester

Bis-sulfone NHS Ester is a bis-alkylating labeling reagent that is selective for the cysteine sulfur atoms from a native disulfide. These reagents undergo bis-alkylation to conjugate both thiols derived from the two cysteine residues of a reduced native disulfide bond such as the interchain disulfide bonds of an antibody. The reaction results in covalent rebridging of the disulfide bond via a three carbon bridge leaving the protein structurally intact.

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Bis-sulfone NHS ester

Bis-sulfone NHS ester Chemical Structure

CAS No. : 899452-51-8

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Description

Bis-sulfone NHS Ester is a bis-alkylating labeling reagent that is selective for the cysteine sulfur atoms from a native disulfide. These reagents undergo bis-alkylation to conjugate both thiols derived from the two cysteine residues of a reduced native disulfide bond such as the interchain disulfide bonds of an antibody. The reaction results in covalent rebridging of the disulfide bond via a three carbon bridge leaving the protein structurally intact.

Molecular Weight

597.66

Formula

C29H27NO9S2

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

CC1=CC=C(S(=O)(CC(C(C2=CC=C(C(ON3C(CCC3=O)=O)=O)C=C2)=O)CS(=O)(C4=CC=C(C=C4)C)=O)=O)C=C1

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

-20°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (83.66 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 1.6732 mL 8.3660 mL 16.7319 mL
5 mM 0.3346 mL 1.6732 mL 3.3464 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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

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

Mass
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Volume
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Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

=
Concentration (final)

C2

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Volume (final)

V2

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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mg/kg

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g

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(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
Purity & Documentation

Purity: 97.0%

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 (sealed storage, away from moisture). 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 1.6732 mL 8.3660 mL 16.7319 mL 41.8298 mL
5 mM 0.3346 mL 1.6732 mL 3.3464 mL 8.3660 mL
10 mM 0.1673 mL 0.8366 mL 1.6732 mL 4.1830 mL
15 mM 0.1115 mL 0.5577 mL 1.1155 mL 2.7887 mL
20 mM 0.0837 mL 0.4183 mL 0.8366 mL 2.0915 mL
25 mM 0.0669 mL 0.3346 mL 0.6693 mL 1.6732 mL
30 mM 0.0558 mL 0.2789 mL 0.5577 mL 1.3943 mL
40 mM 0.0418 mL 0.2091 mL 0.4183 mL 1.0457 mL
50 mM 0.0335 mL 0.1673 mL 0.3346 mL 0.8366 mL
60 mM 0.0279 mL 0.1394 mL 0.2789 mL 0.6972 mL
80 mM 0.0209 mL 0.1046 mL 0.2091 mL 0.5229 mL
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Bis-sulfone NHS ester 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.

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Product Name:
Bis-sulfone NHS ester
Cat. No.:
HY-W615327
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