142072-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142072-99-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,0,7 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 142072-99:
(8*1)+(7*4)+(6*2)+(5*0)+(4*7)+(3*2)+(2*9)+(1*9)=109
109 % 10 = 9
So 142072-99-9 is a valid CAS Registry Number.
142072-99-9Relevant academic research and scientific papers
Stereocontrolled Synthesis of Chiral Nonracemic Halotetrahydropyrans
Martin, Victor S.,Palazon, Jose M.
, p. 2399 - 2402 (2007/10/02)
The stereoselective synthesis of enantiomerically enriched endo-substituted halotetrahydropyrans by an intramolecular Michael addition of a suitable chiral γ-halo-α,β-unsaturated ester is described.
