87428-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87428-89-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,4,2 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 87428-89:
(7*8)+(6*7)+(5*4)+(4*2)+(3*8)+(2*8)+(1*9)=175
175 % 10 = 5
So 87428-89-5 is a valid CAS Registry Number.
87428-89-5Relevant academic research and scientific papers
GENERAL METHOD FOR THE SYNTHESIS OF CHIRAL 2-OXOALKYLIDENETRIPHENYLPHOSPHORANES
Buzzetti, Franco,Barbugian, Natale,Gandolfi, Carmelo A.
, p. 2505 - 2508 (2007/10/02)
An improved method for the synthesis of chiral 3-substituted 2-oxo-alkylidenetriphenylphosphoranes and their application in the elaboration of the ω-sidechain in prostaglandins is reported.
