128888-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128888-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,8 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 128888-87:
(8*1)+(7*2)+(6*8)+(5*8)+(4*8)+(3*8)+(2*8)+(1*7)=189
189 % 10 = 9
So 128888-87-9 is a valid CAS Registry Number.
128888-87-9Relevant articles and documents
PREPARATION OF A CYCLOHEXANONE INTERMEDIATE FOR SYNTHESIS OF THROMBOXANE ANTAGONISTS
Harrison, Peter J.
, p. 7125 - 7128 (2007/10/02)
An efficient route to cyclohexanone (2) is reported, providing multigram quantities of (2) in 35percent overall yield from ketoacid (3).