272770-58-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 272770-58-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,2,7,7 and 0 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 272770-58:
(8*2)+(7*7)+(6*2)+(5*7)+(4*7)+(3*0)+(2*5)+(1*8)=158
158 % 10 = 8
So 272770-58-8 is a valid CAS Registry Number.
272770-58-8Relevant articles and documents
From silylphosphanes and oxazolones to new phosphorus amido-acids
El Mkadmi,Lazraq,Kerbal,Escudie,Couret,Ranaivonjatovo
, p. 151 - 169 (2007/10/03)
Silylphosphanes 3 and 4 gave 1,4-additions with the O=C-C=C moiety of oxazolones la-e and 2a-f to afford the adducts 5-8. Oxidation or sulfuration of 5-8 followed by hydrolysis led to oxyphosphorus (or thiophosphorus) amido-acids 9-11 and 15, 19, 20 respe
