81964-27-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81964-27-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,6 and 4 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81964-27:
(7*8)+(6*1)+(5*9)+(4*6)+(3*4)+(2*2)+(1*7)=154
154 % 10 = 4
So 81964-27-4 is a valid CAS Registry Number.
81964-27-4Relevant academic research and scientific papers
The Synthesis of 4H-1,2,5-Triazepine Derivatives from syn-α-Amino Hyrazones
Gnichtel, Horst,Salem, Widah I.
, p. 729 - 733 (2007/10/02)
syn-α-Anilinoacetophenone hydrazones 1 were acylated by chloroacetyl chloride.By the Finkelstein reaction α-(2-iodoacetylamino) hydrazones 3 were formed and cyclocondensed to yield 2,3,5,6-tetrahydro-4H-1,2,5-triazepin-4-ones 4 using sodium hydroxide (pha
