87904-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87904-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,0 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 87904-90:
(7*8)+(6*7)+(5*9)+(4*0)+(3*4)+(2*9)+(1*0)=173
173 % 10 = 3
So 87904-90-3 is a valid CAS Registry Number.
87904-90-3Relevant articles and documents
An alternative efficient method for transformation of thiocarbonyl to carbonyl group using trifluoroacetic anhydride
Masuda, Ryoichi,Hojo, Masaru,Ichi, Tadaaki,Sasano, Shigetoshi,Kobayashi, Tatsuya,Kuroda, Chihiro
, p. 1195 - 1198 (2007/10/02)
A simple and efficient procedure for the rapid and mild conversion of thiocarbonyls to carbonyls in high yields is described.