191548-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191548-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,5,4 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 191548-91:
(8*1)+(7*9)+(6*1)+(5*5)+(4*4)+(3*8)+(2*9)+(1*1)=161
161 % 10 = 1
So 191548-91-1 is a valid CAS Registry Number.
191548-91-1Relevant articles and documents
A simple synthesis of 3-substituted 5-trifluoromethylpyrroles via modified Hantzsch reaction
Kameswaran, Venkataraman,Jiang, Biao
, p. 530 - 532 (1997)
5-Trifluoromethyl-substituted pyrroles have been prepared in high yields via the Hantzsch reaction.