5138-91-0 Usage
General Description
2-Chlorotoluene-4-sulfonic acid sodium salt is a chemical compound that is commonly used as an intermediate in the production of dyes, pigments, and pharmaceuticals. It is a white crystalline powder with a strong odor, and it is soluble in water. This chemical is known for its strong acidic properties and is often used as a catalyst in various chemical reactions. It is also used in the synthesis of specialty chemicals and in organic synthesis. Additionally, it is important to handle this chemical with care, as it may cause irritation to the skin, eyes, and respiratory system if not properly handled.
Check Digit Verification of cas no
The CAS Registry Mumber 5138-91-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,3 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5138-91:
(6*5)+(5*1)+(4*3)+(3*8)+(2*9)+(1*1)=90
90 % 10 = 0
So 5138-91-0 is a valid CAS Registry Number.
InChI:InChI=1/C7H7ClO3S.Na/c1-5-2-3-6(4-7(5)8)12(9,10)11;/h2-4H,1H3,(H,9,10,11);/q;+1/p-1