118195-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118195-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,1,9 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 118195-40:
(8*1)+(7*1)+(6*8)+(5*1)+(4*9)+(3*5)+(2*4)+(1*0)=127
127 % 10 = 7
So 118195-40-7 is a valid CAS Registry Number.
118195-40-7Relevant articles and documents
The transformation of levopimaric acid into warburganal
Ayer, William A.,Talamas, Francisco X.
, p. 1675 - 1685 (2007/10/02)
The chiral resin acid levopimaric acid (1), isolated from pine oleoresin, is used as a starting material for the synhesis of (-)-warburganal (2).The synthesis proceeds via the endoperoxide of methyl levopimarate, which after ozonolysis, protection of the
