134277-89-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134277-89-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,2,7 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 134277-89:
(8*1)+(7*3)+(6*4)+(5*2)+(4*7)+(3*7)+(2*8)+(1*9)=137
137 % 10 = 7
So 134277-89-7 is a valid CAS Registry Number.
134277-89-7Relevant articles and documents
SYNTHESIS OF OXACYCLIC CARBOXYLIC ESTERS THROUGH RING CLOSURE OF Α-ALKOXY ESTER FREE RADICALS
Lolkema, Lucie D. M.,Hiemstra, Henk,Ghouch, Al Ayachi Al,Speckamp, W. Nico
, p. 1491 - 1494 (2007/10/02)
Cyclizations of 1-methoxycarbonyl-2-oxa-5-hexenyl (and related) radical intermediates, generated from phenylthio precursors, proceed in good yields and mainly lead to substituted 2-tetrahydrofurancarboxylic esters.
