101765-72-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101765-72-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,7,6 and 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 101765-72:
(8*1)+(7*0)+(6*1)+(5*7)+(4*6)+(3*5)+(2*7)+(1*2)=104
104 % 10 = 4
So 101765-72-4 is a valid CAS Registry Number.
101765-72-4Relevant articles and documents
Synthetic study of 1-substituted carbapenem antibiotics
Shibata,Iino,Tanaka,et al.
, p. 4739 - 4742 (1985)
Total synthesis of 1-substituted carbapenems is described. The key step is the reaction of acetoxyazetidinone with ketene silyl acetal.