19268-77-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19268-77-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,2,6 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 19268-77:
(7*1)+(6*9)+(5*2)+(4*6)+(3*8)+(2*7)+(1*7)=140
140 % 10 = 0
So 19268-77-0 is a valid CAS Registry Number.
19268-77-0Relevant academic research and scientific papers
Synthesis of Some New Pyrazolines from 4-Nitro- and 4-Chloro-4''-methoxybenzalacetophenones
Sayed, G. H.
, p. 364 - 367 (2007/10/02)
Some new pyrazolines (III,IV) have been prepared by the reaction of chalkones with hydrazines.The new pyrazolines have been converted into different derivatives.The hitherto unknown reaction of pyrazolines with phthalic anhydride has also been described.
