186972-97-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186972-97-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,9,7 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 186972-97:
(8*1)+(7*8)+(6*6)+(5*9)+(4*7)+(3*2)+(2*9)+(1*7)=204
204 % 10 = 4
So 186972-97-4 is a valid CAS Registry Number.
186972-97-4Relevant articles and documents
A convenient synthesis of 15N-labeled diethylenetriamine [(15N)dien] and ethylenediamine [(15N)En]
Zang, Erle,Sadler, Peter J.
, p. 410 - 412 (2007/10/03)
(15N)Dien and (15N)en have been synthesized from 15N-glycine via amidation and reduction reactions with trityl as amino-protective group. The method is economic, mild and easy to handle.
