144219-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144219-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,2,1 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 144219-80:
(8*1)+(7*4)+(6*4)+(5*2)+(4*1)+(3*9)+(2*8)+(1*0)=117
117 % 10 = 7
So 144219-80-7 is a valid CAS Registry Number.
144219-80-7Relevant articles and documents
A FACILE AND CONVENIENT SYNTHETIC METHOD FOR 3-TRIFLUOROACETYLPYRROLES
Okada, Etsuji,Masuda, Ryoichi,Hojo, Masaru,Yoshida, Reiko
, p. 1435 - 1441 (2007/10/02)
3-Trifluoroacetylpyrroles are easily obtained in excellent yields by oxygen-nitrogen exchange reaction of β-trifluoroacetylvinyl ethers with 2,2-dimethoxyethylamine and subsequent cyclodehydration of the products.