81310-20-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81310-20-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,1 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81310-20:
(7*8)+(6*1)+(5*3)+(4*1)+(3*0)+(2*2)+(1*0)=85
85 % 10 = 5
So 81310-20-5 is a valid CAS Registry Number.
81310-20-5Relevant academic research and scientific papers
SYNTHESIS OF 2,2-DIMETHYL-1-CARBAPENAM DERIVATIVES VIA AN INTRAMOLECULAR MICHAEL-TYPE REACTION
Shibuya, Masayuki,Kuretani, Masahiko,Kubota, Seiju
, p. 4453 - 4456 (2007/10/02)
The synthesis of 2,2-dimethyl-1-carbapenam derivatives via an intramolecular Michael-type condensation reaction is described.
