80056-42-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80056-42-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,0,5 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 80056-42:
(7*8)+(6*0)+(5*0)+(4*5)+(3*6)+(2*4)+(1*2)=104
104 % 10 = 4
So 80056-42-4 is a valid CAS Registry Number.
80056-42-4Relevant articles and documents
Novel &β-Lactams derived from the Photoisomer of N-Benzyloxycarbonylmethylene-2-pyridone
Begley, William J.,Lowe, Gordon,Cheetham, Anthony K.,Newsam, John M.
, p. 2620 - 2624 (1981)
Transformations of the cyclobutene ring in the photoisomer of N-benzyloxycarbonylmethylene-2-pyridone gives some novel fused β-lactams.