85580-21-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 85580-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,5,8 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 85580-21:
(7*8)+(6*5)+(5*5)+(4*8)+(3*0)+(2*2)+(1*1)=148
148 % 10 = 8
So 85580-21-8 is a valid CAS Registry Number.
85580-21-8Relevant articles and documents
The deblocking of cephalosporin benzhydryl esters with formic acid
Kametani,Sekine,Honda
, p. 4545 - 4547 (2007/10/02)
The synthesis of benzhydryl esters of cephalosporin derivatives (4-6) and removal of the benzhydryl protecting group with formic acid are described.