89862-37-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89862-37-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,6 and 2 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 89862-37:
(7*8)+(6*9)+(5*8)+(4*6)+(3*2)+(2*3)+(1*7)=193
193 % 10 = 3
So 89862-37-3 is a valid CAS Registry Number.
89862-37-3Relevant articles and documents
Synthesis of 1-(2,4-Dinitrophenyl)-3-methyl-4-substituted Heterocycles-2-pyrazolin-5-one
Youssef, Mohamed Salah Kamel
, p. 86 - 89 (2007/10/02)
4-Bromo-1-(2,4-dinitrophenyl)-3-methyl-2-pyrazolin-5-one was reacted with the sodium salt of some reactive methylene compounds and then condensed with hydrazine hydrate, phenyl hydrazine, hydroxylamine hydrochloride, urea and thiourea to obtain the 4-subs
