137696-33-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137696-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,6,9 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 137696-33:
(8*1)+(7*3)+(6*7)+(5*6)+(4*9)+(3*6)+(2*3)+(1*3)=164
164 % 10 = 4
So 137696-33-4 is a valid CAS Registry Number.
137696-33-4Relevant articles and documents
Enantioselective Rh-Mediated Synthesis of (-)-PGE2 Methyl Ester
Taber, Douglass F.,Hoerrner, R. Scott
, p. 441 - 447 (2007/10/02)
Intramolecular Rh(II) carboxylate catalyzed cyclization of an α-diazo β-methylene ketone to form a fused cyclopropane is shown to compete efficiently with β-hydride elimination, so long as a catalyst derived from an electron-donating carboxylate is used.C
