77891-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77891-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,9 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 77891-20:
(7*7)+(6*7)+(5*8)+(4*9)+(3*1)+(2*2)+(1*0)=174
174 % 10 = 4
So 77891-20-4 is a valid CAS Registry Number.
77891-20-4Relevant academic research and scientific papers
tert-Butyl (Diphenylphosphinyl)isocyanoacetate and its Use in the Wittig-Horner Reaction with Aldehydes
Rachon, Janusz,Schoellkopf, Ulrich
, p. 99 - 102 (2007/10/02)
The title compound 2 is synthesized.Its reaction with aromatic and heteroaromatic aldehydes 1 leads to 3-substituted tert-butyl 2-isocyanoacrylates 3.
