80403-42-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80403-42-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,4,0 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 80403-42:
(7*8)+(6*0)+(5*4)+(4*0)+(3*3)+(2*4)+(1*2)=95
95 % 10 = 5
So 80403-42-5 is a valid CAS Registry Number.
80403-42-5Relevant academic research and scientific papers
SYNTHESIS OF 1,1-DIMETHYLCARBA-2-PENEM DERIVATIVES VIA A DIECKMANN-TYPE CYCLIZATION
Shibuya, Masayuki,Kubota, Seiju
, p. 3611 - 3614 (2007/10/02)
The synthesis of 1,1-dimethylcarba-2-penem derivatives via a Dieckmann-type cyclization and the use of a new method for removing the benzyl protecting group are reported.
