91775-41-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91775-41-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,7 and 5 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91775-41:
(7*9)+(6*1)+(5*7)+(4*7)+(3*5)+(2*4)+(1*1)=156
156 % 10 = 6
So 91775-41-6 is a valid CAS Registry Number.
91775-41-6Relevant articles and documents
NEW ACTIVATION OF CARBOXYLIC ACIDS BY REACTION WITH N,N-BIS-(2-OXO-3-OXAZOLIDINYL) PHOSPHORODIAMIDIC CHLORIDE (ClSPO)
Cabre-Castellvi, Juan,Palomo-Coll, Antonio Luis
, p. 4179 - 4182 (2007/10/02)
Pentacoordinated and quinquevalent phosphorus intermediates, have been isolated by reaction between the title reagent and carboxylic acids, prior to conversion into amides.