136824-79-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136824-79-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,8,2 and 4 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 136824-79:
(8*1)+(7*3)+(6*6)+(5*8)+(4*2)+(3*4)+(2*7)+(1*9)=148
148 % 10 = 8
So 136824-79-8 is a valid CAS Registry Number.
136824-79-8Relevant articles and documents
An expedient synthesis of monodispersed oligo(ethylene glycols)
Burkett, Brendan A.,Chan, Tak Hang
, p. 1007 - 1010 (2004)
A convenient approach to the synthesis of oligo(ethylene glycols) under phase transfer conditions is described. Oligo(ethylene glycols) (x = 7-12) are obtained in excellent yields and high purity via modular, bi-directional elongation of readily available ethylene glycol bis-tosylates.
