27503-78-2 Usage
General Description
1H-Benzimidazole-5-sulfonic acid (9CI) is a chemical compound with the molecular formula C7H6N2O3S. It is a sulfonic acid derivative of benzimidazole, containing a benzene ring fused to an imidazole ring and a sulfonic acid group. 1H-Benzimidazole-5-sulfonicacid(9CI) is commonly used as an intermediate in the synthesis of pharmaceuticals, dyes, and other organic compounds. It is also used in the production of veterinary medicines. Additionally, 1H-Benzimidazole-5-sulfonic acid (9CI) has potential applications in the field of material science and as a building block for the synthesis of novel functional materials. Its chemical properties and structure make it a versatile compound with a wide range of potential applications in various industries.
Check Digit Verification of cas no
The CAS Registry Mumber 27503-78-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,5,0 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 27503-78:
(7*2)+(6*7)+(5*5)+(4*0)+(3*3)+(2*7)+(1*8)=112
112 % 10 = 2
So 27503-78-2 is a valid CAS Registry Number.
InChI:InChI=1/C7H6N2O3S/c10-13(11,12)5-1-2-6-7(3-5)9-4-8-6/h1-4H,(H,8,9)(H,10,11,12)
27503-78-2Relevant articles and documents
SULFONATION OF SUBSTITUTED AZOLES WITH SULFUR TRIOXIDE IN DICHLOROETHANE
Bochkareva, T. P.,Passet, B. V.,Popov, K. R.,Platonova, N. V.,Koval'chuk, T. I.
, p. 1084 - 1089 (2007/10/02)
A novel method has been developed for the synthesis of sulfonic acids of five-membered heterocycles containing two heteroatoms, with a solution of sulfur trioxide in 1,2-dichloroethane.High yields of the required products are obtained, under conditions which are mild in comparison with those used in earlier methods.The mechanism of sulfonation is discussed, and some azole.SO3 complexes have been obtained and described.
