201280-65-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201280-65-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,2,8 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 201280-65:
(8*2)+(7*0)+(6*1)+(5*2)+(4*8)+(3*0)+(2*6)+(1*5)=81
81 % 10 = 1
So 201280-65-1 is a valid CAS Registry Number.
201280-65-1Relevant academic research and scientific papers
Reaction of 3-Aryl-2-cyanothioacrylamides with Electron-deficient Alkynes: Synthesis of 4-Aryl-4H-thiopyrans
Bloxham, Jason,Dell, Colin P.
, p. 989 - 994 (2007/10/02)
The 3-aryl-2-cyanothioacrylamides 2-4 react well with methyl propionate and dimethyl acetylenedicarboxylate yielding the thiopyrans 8-13.Reactions with less activated alkynes proceed sluggishly, if at all.
