91-29-2 Usage
Uses
2-(4-Aminoaniline)-5-nitrobenzenesulphonicacid (CAS# 91-29-2) is a dye used in oxidative condensation of, with [(ethylphenylamino)methyl]benzenesulfonic acid.
Flammability and Explosibility
Notclassified
Check Digit Verification of cas no
The CAS Registry Mumber 91-29-2 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 1 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91-29:
(4*9)+(3*1)+(2*2)+(1*9)=52
52 % 10 = 2
So 91-29-2 is a valid CAS Registry Number.
InChI:InChI=1/C12H11N3O5S/c13-8-1-3-9(4-2-8)14-11-6-5-10(15(16)17)7-12(11)21(18,19)20/h1-7,14H,13H2,(H,18,19,20)