18477-17-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18477-17-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,4,7 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 18477-17:
(7*1)+(6*8)+(5*4)+(4*7)+(3*7)+(2*1)+(1*7)=133
133 % 10 = 3
So 18477-17-3 is a valid CAS Registry Number.
18477-17-3Relevant articles and documents
Triflic acid an efficient catalyst for the Thiele-Winter reaction
Villemin, Didier,Bar, Nathalie,Hammadi, Mohamed
, p. 4777 - 4778 (2007/10/03)
Triflic acid is a convenient and non hazardous acid for the Thiele-Winter reaction of quinones. The synthetic scope of the Thiele-Winter reaction was increased by the use of triflic acid.