77150-74-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77150-74-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,5 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 77150-74:
(7*7)+(6*7)+(5*1)+(4*5)+(3*0)+(2*7)+(1*4)=134
134 % 10 = 4
So 77150-74-4 is a valid CAS Registry Number.
77150-74-4Relevant articles and documents
SYNTHESIS OF 1,1-DIMETHYLCARBAPEN-2-EM DERIVATIVE VIA AN ALDOL-TYPE CYCLIZATION
Shibuya, Masayuki,Kubota, Seiju
, p. 4009 - 4012 (2007/10/02)
The synthesis of 1,1-dimethylcarbapen-2-em derivative 3 is described.The key step in the synthesis is an intramolecular aldol-type condensation reaction.
