616-85-3 Usage
General Description
4-hydroxy-3-nitrobenzenesulphonic acid, also known as 4-HNBSA, is a chemical compound with the molecular formula C6H5NO7S. It is a derivative of benzenesulfonic acid and contains a hydroxyl group and a nitro group attached to the benzene ring. 4-hydroxy-3-nitrobenzenesulphonic acid is commonly used in the synthesis of dyes and pigments, and it is often employed as a pH indicator due to its ability to change color in response to changes in acidity. 4-HNBSA is also known for its strong acid properties, and it is used in various industrial processes and research applications. However, it is important to handle this chemical with caution, as it can be hazardous if not used properly.
Check Digit Verification of cas no
The CAS Registry Mumber 616-85-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,1 and 6 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 616-85:
(5*6)+(4*1)+(3*6)+(2*8)+(1*5)=73
73 % 10 = 3
So 616-85-3 is a valid CAS Registry Number.
InChI:InChI=1/C6H5NO6S/c8-6-2-1-4(14(11,12)13)3-5(6)7(9)10/h1-3,8H,(H,11,12,13)
