120263-03-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 120263-03-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,2,6 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 120263-03:
(8*1)+(7*2)+(6*0)+(5*2)+(4*6)+(3*3)+(2*0)+(1*3)=68
68 % 10 = 8
So 120263-03-8 is a valid CAS Registry Number.
120263-03-8Relevant articles and documents
Asymmetric 1,4-additions to γ-menthyloxybutenolides. Part IV. Two enantioselective syntheses of 2-methyl-1,4-butanediol
Jansen,Feringa
, p. 1367 - 1376 (2007/10/02)
Based on the asymmetric Michael addition to 5(R)- and 5(S)-menthyloxy-2[5H]-furanone two new syntheses of enantiomerically pure R- and S-2-methyl-1,4-butanediol are described.