1027174-55-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1027174-55-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,7,1,7 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1027174-55:
(9*1)+(8*0)+(7*2)+(6*7)+(5*1)+(4*7)+(3*4)+(2*5)+(1*5)=125
125 % 10 = 5
So 1027174-55-5 is a valid CAS Registry Number.
1027174-55-5Relevant articles and documents
A convenient synthesis of thiophenes from β,γ-epoxycarbonyl compounds
Kang,U
, p. 2647 - 2653 (2007/10/02)
β,γ-Epoxycarbonyl compounds were converted to thiophenes when treated with Lawesson's reagent in the presence of a catalytic amount of p-toluenesulfonic acid.