147137-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 147137-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,7,1,3 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 147137-77:
(8*1)+(7*4)+(6*7)+(5*1)+(4*3)+(3*7)+(2*7)+(1*7)=137
137 % 10 = 7
So 147137-77-7 is a valid CAS Registry Number.
147137-77-7Relevant articles and documents
Five- and Six-Membered Cyclic Phosphonic Diamides, Thioester-amides and Spirobi
Neidlein, Richard,Buseck, Stephan
, p. 2520 - 2530 (2007/10/02)
By reaction of the 1,2-diaminobenzene derivatives 1a-d with the phosphonyl dichlorides 2a-g, the 1,3-dihydro-1,3,2-benzodiazaphosphol-2-ones 4a-q are obtained.The phosphonoyl dichlorides 2a-e, 2g, and 2h yield with naphthalene-1,8-diamines (5) the diazaph
