145237-16-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 145237-16-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,2,3 and 7 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 145237-16:
(8*1)+(7*4)+(6*5)+(5*2)+(4*3)+(3*7)+(2*1)+(1*6)=117
117 % 10 = 7
So 145237-16-7 is a valid CAS Registry Number.
145237-16-7Relevant articles and documents
The Conversion of Carboxylic Acids to Keto Phosphorane Precursors of 1,2,3-Vicinal Tricarbonyl Compounds
Wasserman, Harry H.,Ennis, David S.,Blum, Charles A.,Rotello, Vincent M.
, p. 6003 - 6006 (1992)
Acyl phosphoranylidines react with acid chlorides or anhydrides in the presence of bis(trimethylsilyl)acetamide (BSA), or couple directly with carboxylic acids activated by EDCI to give keto phosphoranes 1.
