83-23-8 Usage
General Description
O-Benzenesulfo H acid is a white crystalline powder that is widely used as an intermediate in the synthesis of various dyes and pigments. It is also known by its chemical name 4-Aminobenzenesulfonic acid, and has various industrial applications including as a dye intermediate and as a reagent in the synthesis of pharmaceuticals. O-Benzenesulfo H acid is a strong acid with a pKa of 1.92, and is soluble in water, ethanol, and acetone. It is also used in the production of organic chemicals, as a stabilizer for hydrogen peroxide, and as a corrosion inhibitor. It is important to handle and store O-Benzenesulfo H acid with care, as it can be harmful if ingested or inhaled, and can cause skin and eye irritation.
Check Digit Verification of cas no
The CAS Registry Mumber 83-23-8 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 83-23:
(4*8)+(3*3)+(2*2)+(1*3)=48
48 % 10 = 8
So 83-23-8 is a valid CAS Registry Number.
InChI:InChI=1/C16H13NO9S3/c17-14-8-12(27(18,19)20)6-10-7-13(28(21,22)23)9-15(16(10)14)26-29(24,25)11-4-2-1-3-5-11/h1-9H,17H2,(H,18,19,20)(H,21,22,23)
