72155-04-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72155-04-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,1,5 and 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 72155-04:
(7*7)+(6*2)+(5*1)+(4*5)+(3*5)+(2*0)+(1*4)=105
105 % 10 = 5
So 72155-04-5 is a valid CAS Registry Number.
InChI:InChI=1/C15H14ClNO4/c1-17-12(7-13(19)20)6-10(8-18)14(17)15(21)9-2-4-11(16)5-3-9/h2-6,18H,7-8H2,1H3,(H,19,20)
72155-04-5Relevant articles and documents
Synthesis and Biological Activity of 5-(4-Chlorobenzoyl)-4-(hydroxymethyl)-1-methyl-1H-pyrrole-2-acetic Acid, a Major Metabolite of Zomepirac Sodium
Anderson, Neal G.,Carson, John R.
, p. 98 - 100 (1980)
5-(4-Chlorobenzoyl)-4-(hydroxymethyl)-1-methyl-1H-pyrrole-2-acetic acid (2), the major oxidative metabolite of zomepirac (1), was synthesized starting with ethyl 5-(4-chlorobenzoyl)-1,4-dimethyl-1H-pyrrole-2-acetate (3), the ethyl ester of 1.Compound 3 wa