137710-73-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137710-73-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,7,1 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 137710-73:
(8*1)+(7*3)+(6*7)+(5*7)+(4*1)+(3*0)+(2*7)+(1*3)=127
127 % 10 = 7
So 137710-73-7 is a valid CAS Registry Number.
137710-73-7Relevant articles and documents
"REMOTE" DIANIONS 5. SYNTHESIS OF δ-CONICEINE
Green, Diana L. C.,Thompson, Charles M.
, p. 5051 - 5054 (2007/10/02)
A total synthesis of (+/-) δ-coniceine from 1,4-butanediol is herein reported.A pivotal transformation of the synthesis involves the addition of the dianion of 4-(phenylsulphonyl)butanoic acid to an activated imine followed by subsequent cyclization to form a substituted piperidone intermediate.
