134749-52-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134749-52-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,7,4 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 134749-52:
(8*1)+(7*3)+(6*4)+(5*7)+(4*4)+(3*9)+(2*5)+(1*2)=143
143 % 10 = 3
So 134749-52-3 is a valid CAS Registry Number.
134749-52-3Relevant articles and documents
A convenient synthesis of parent and 2-substituted octahydro-2H-pyrazino[1,2-a]-pyrazines
Gubert,Braojos,Sacristan,Ortiz
, p. 318 - 320 (2007/10/02)
A series of octahydro-2H-pyrazino[1,2-a]pyrazines (1,4,8-triazabicyclo[4.4.0]decanes), 7 have been prepared by a new and efficient method starting from 1,4-dibenzyl-2-ethoxycarbonylpiperazine (1). The target compounds are precursors of a new series of ant
