135819-96-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135819-96-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,8,1 and 9 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 135819-96:
(8*1)+(7*3)+(6*5)+(5*8)+(4*1)+(3*9)+(2*9)+(1*6)=154
154 % 10 = 4
So 135819-96-4 is a valid CAS Registry Number.
135819-96-4Relevant articles and documents
Asymmetric 1,4-additions to γ-menthyloxybutenolides. (Part III) Enantioselective synthesis of (-) eudesmin
Jansen,Feringa
, p. 3239 - 3242 (1991)
Based on an enantioselective Michael addition of the aryldithiane of 3,4-dimethoxybenzaldehyde, to (5S)-menthyloxy-2[5H]-furanone optically pure (-) Eudesmin was synthesized in 16% overall yield.