833-57-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 833-57-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,3 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 833-57:
(5*8)+(4*3)+(3*3)+(2*5)+(1*7)=78
78 % 10 = 8
So 833-57-8 is a valid CAS Registry Number.
833-57-8Relevant articles and documents
Ring-closing olefin metathesis for the synthesis of phosphorus containing heterocycles
Hetherington,Greedy,Gouverneur
, p. 2053 - 2060 (2000)
A series of cyclic phosphorus containing heterocycles 9a-k was prepared in a one-step procedure by ring closing metathesis of dienes 7a-k. (C) 2000 Elsevier Science Ltd.
