139926-22-0 Usage
Uses
Methyl 3-ethoxythiophene-2-carboxylate is a useful chemical for the preparation sulfonamides via C-H/N-H coupling of arenes and sulfonimides.
Check Digit Verification of cas no
The CAS Registry Mumber 139926-22-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,2 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139926-22:
(8*1)+(7*3)+(6*9)+(5*9)+(4*2)+(3*6)+(2*2)+(1*2)=160
160 % 10 = 0
So 139926-22-0 is a valid CAS Registry Number.
InChI:InChI=1/C8H10O3S/c1-3-11-6-4-5-12-7(6)8(9)10-2/h4-5H,3H2,1-2H3
139926-22-0Relevant articles and documents
Synthesis and preliminary pharmacological study of thiophene analogues of the antipyretic and analgesic agent ethenzamide
Darias,Bravo,Abdallah,Sanchez Mateo,Exposito-Orta
, p. 83 - 87 (2007/10/02)
A preliminary pharmacologcal study of a thiophene analogue 1b of the analgesic and antipyretic agent Ethenzamide and of a closely related compound 1a showed that a great similarity exists among Ethenzamide and the thiophenic compounds for analgesic, antipyretic, ulcerogenic, hypothermic, and sedative effects. However, the acute toxicity in mice for the thiophenic compounds is notably higher than that of Ethenzamide.