113237-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 113237-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,2,3 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 113237-53:
(8*1)+(7*1)+(6*3)+(5*2)+(4*3)+(3*7)+(2*5)+(1*3)=89
89 % 10 = 9
So 113237-53-9 is a valid CAS Registry Number.
113237-53-9Relevant articles and documents
SYNTHESE DE NOUVEAUX SELS DE TETRAPHOSPHONIUM MACROCYCLIQUES
Vincens, Maurice,Grimaldo Moron, Jose T.,Pasqualini, Roberto,Vidal, Michel
, p. 1259 - 1262 (1987)
A one step synthesis of tetraphosphonium salts of the saturated 5 and ethylenic 3 macrocycles containing C-C bridges has been carried out in good yield.The cleavage of the carbon bridges during basic hydrolysis is highly regioselective.