245115-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 245115-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,5,1,1 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 245115-89:
(8*2)+(7*4)+(6*5)+(5*1)+(4*1)+(3*5)+(2*8)+(1*9)=123
123 % 10 = 3
So 245115-89-3 is a valid CAS Registry Number.
245115-89-3Relevant articles and documents
The modified Julia olefination in vitamin D2 synthesis
Blakemore,Kocienski,Marzcak,Wicha
, p. 1209 - 1215 (2007/10/03)
A partial synthesis of vitamin D2 employing fragments derived from a new improved degradation procedure is described. The 7,8-double bond of the vitamin D triene system was synthesised via the modified Julia olefination. The new procedure is more efficient than the classical Julia olefination.
