1190975-79-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1190975-79-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,0,9,7 and 5 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1190975-79:
(9*1)+(8*1)+(7*9)+(6*0)+(5*9)+(4*7)+(3*5)+(2*7)+(1*9)=191
191 % 10 = 1
So 1190975-79-1 is a valid CAS Registry Number.
1190975-79-1Relevant articles and documents
Reaction of ethyl 4-[(E)-1-chloro-3-oxoprop-1-en-1-yl]-3,5-dimethyl-1H- pyrrole-2-carboxylate with hydrazines
Mikhed'Kina,Bylina,Mel'Nik,Kozhich
, p. 564 - 571 (2009)
Ethyl 4-[(E)-1-chloro-3-oxoprop-1-en-1-yl]-3,5-dimethyl-1H-pyrrole-2- carboxylate reacted with substituted hydrazines in different solvents to give mixtures of regioisomeric 3- and 5-substituted pyrazoles. Conditions were found for selective formation of