119304-59-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 119304-59-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,3,0 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 119304-59:
(8*1)+(7*1)+(6*9)+(5*3)+(4*0)+(3*4)+(2*5)+(1*9)=115
115 % 10 = 5
So 119304-59-5 is a valid CAS Registry Number.
119304-59-5Relevant articles and documents
The Mannich Reaction of 1-(2-Hydroxyphenyl)-1-ethanone, -1-propanone and -1-butanone, and 1-(2-Hydroxy-5-methylphenyl)-2-phenyl-1-ethanone
Joglekar, S. J.,Samant, S. D.
, p. 830 - 832 (2007/10/02)
The title compounds on reaction with secondary amines in the presence of formaldehyde under acidic condition, gave the corresponding Mannich bases by ω-aminomethylation.