124909-12-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 124909-12-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,9,0 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 124909-12:
(8*1)+(7*2)+(6*4)+(5*9)+(4*0)+(3*9)+(2*1)+(1*2)=122
122 % 10 = 2
So 124909-12-2 is a valid CAS Registry Number.
124909-12-2Relevant articles and documents
TOTAL SYNTHESIS OF (R)-(-)-β-CUPARENONE
Gharpure, Milind M.,Rao, A. S.
, p. 679 - 688 (2007/10/02)
(R)-(-)-β-Cuparenone has been synthesized from (S)-(+)-acid-2 obtained via resolution of the racemic acid.Two of the noteworthy steps are (a) repeated methylation of ester (+)-8 with LDA/MeI to furnish (+)-10 and (b) the reaction of 12, having two neopent