138977-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138977-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,7 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 138977-18:
(8*1)+(7*3)+(6*8)+(5*9)+(4*7)+(3*7)+(2*1)+(1*8)=181
181 % 10 = 1
So 138977-18-1 is a valid CAS Registry Number.
138977-18-1Relevant articles and documents
NUCLEOPHILIC ADDITION TO HOMOCHIRAL N-ACYLISOQUINOLINIUM SALTS ASYMMETRIC SYNTHESIS OF (+)-CARNEGINE
Comins, Daniel L.,Badawi, Mohamed M.
, p. 1869 - 1873 (2007/10/02)
The asymmetric addition of methyl nucleophiles to homochiral N-acylisoquinolinium salts was studied and utilized in a synthesis of the tetrahydroisoquinoline alkaloid, (+)-carnegine.
