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4,4'-Dithiobis(3-aminobenzenesulfonamide), also known as DABSA or Ellman's reagent, is a chemical compound with the molecular formula C14H14N4O4S4. It is a yellow crystalline solid that is soluble in water and polar organic solvents. DABSA is widely used as a colorimetric reagent for the determination of free sulfhydryl groups in proteins and other molecules, as it forms a yellow-colored complex with these groups. The reaction is based on the reduction of the disulfide bond in DABSA by the sulfhydryl group, resulting in the formation of a 2-nitro-5-thiobenzoic acid (TNB) derivative, which has a strong absorbance at 412 nm. This property makes DABSA a valuable tool in various biochemical and analytical applications, such as enzyme assays, protein purification, and the study of protein structure and function.

3905-92-8

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3905-92-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3905-92-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,0 and 5 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3905-92:
(6*3)+(5*9)+(4*0)+(3*5)+(2*9)+(1*2)=98
98 % 10 = 8
So 3905-92-8 is a valid CAS Registry Number.

3905-92-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-amino-4-[(2-amino-4-sulfamoylphenyl)disulfanyl]benzenesulfonamide

1.2 Other means of identification

Product number -
Other names 3,3'-diamino-4,4'-disulfanediyl-bis-benzenesulfonic acid diamide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:3905-92-8 SDS

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