128648-65-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128648-65-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,4 and 8 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 128648-65:
(8*1)+(7*2)+(6*8)+(5*6)+(4*4)+(3*8)+(2*6)+(1*5)=157
157 % 10 = 7
So 128648-65-7 is a valid CAS Registry Number.
128648-65-7Relevant academic research and scientific papers
Facile Synthesis of β-Trifluoroacetylketene O,N-, S,N- and N,N-Acetals
Hojo, Masaru,Masuda, Ryoichi,Okada, Etsuji,Yamamoto, Hiromi,Morimoto, Katsushi,Okada, Ken
, p. 195 - 198 (2007/10/02)
Trifluoroacetylketene O,N-, S,N- and N,N-acetals 3-6 are easily obtained in excellent yields by O-N and S-N exchange reactions of trifluoroacetylketene O,O- and S,S-acetals 1, 2 with various amines.
