137579-04-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137579-04-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,5,7 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 137579-04:
(8*1)+(7*3)+(6*7)+(5*5)+(4*7)+(3*9)+(2*0)+(1*4)=155
155 % 10 = 5
So 137579-04-5 is a valid CAS Registry Number.
137579-04-5Relevant articles and documents
Direct synthesis of lactones by double carbonylation of (2-bromoethyl)benzene catalyzed by Sn(Co(CO)4)4
Monflier, Eric,Pellegrini, Sylvain,Mortreux, Andre,Petit, Francis
, p. 4703 - 4704 (1991)
The direct synthesis of lactones is performed by double carbonylation of (2-bromoethyl)benzene under carbon monoxide pressure. The reaction is catalyzed by Sn(Co(CO)4))4 in the presence of a base in hydro-alcoholic medium.
