128812-32-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128812-32-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,1 and 2 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128812-32:
(8*1)+(7*2)+(6*8)+(5*8)+(4*1)+(3*2)+(2*3)+(1*2)=128
128 % 10 = 8
So 128812-32-8 is a valid CAS Registry Number.
128812-32-8Relevant articles and documents
Synthesis of Pyrroles via Ethyl N-(3-Oxo-1-alkenyl)glycinates
Hombrecher, Hermann K.,Horter, Gaby
, p. 389 - 391 (1990)
The reaction of ethyl glycinate hydrochloride (1) with 1,3-dicarbonyl compounds 2a-g in presence of triethylamine leads to the formation of ethyl N-(3-oxo-1-alkenyl)glycinates 3a-g.These compounds are easily converted to the pyrroles 4a-g by base-catalyze
