20680-48-2 Usage
General Description
2-DIAZO-1-NAPHTHOL-4-SULFONIC ACID HYDRATE is a chemical compound that is used in the dye industry as a diazo compound. It is a hydrous form of the sulfonic acid and is often used as a coupling agent in the production of azo dyes. 2-DIAZO-1-NAPHTHOL-4-SULFONIC ACID HYDRATE is a strong acid and is commonly used as a pH indicator in analytical chemistry. It is also used in the production of color photographic emulsions. Additionally, it is used in the preparation of azo pigments and as a reagent for the determination of nitrate and nitrite ions.
Check Digit Verification of cas no
The CAS Registry Mumber 20680-48-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,8 and 0 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20680-48:
(7*2)+(6*0)+(5*6)+(4*8)+(3*0)+(2*4)+(1*8)=92
92 % 10 = 2
So 20680-48-2 is a valid CAS Registry Number.
InChI:InChI=1/C10H8N2O4S/c11-12-8-5-9(17(14,15)16)6-3-1-2-4-7(6)10(8)13/h1-5,10,13H,(H,14,15,16)
