78267-37-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78267-37-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,2,6 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 78267-37:
(7*7)+(6*8)+(5*2)+(4*6)+(3*7)+(2*3)+(1*7)=165
165 % 10 = 5
So 78267-37-5 is a valid CAS Registry Number.
78267-37-5Relevant articles and documents
Some Reactions of Ethyl 2-Anilino-4-oxo-4,5-dihydrothiophen-3-carboxylate
Faull, Alan W.,Hull, Roy
, p. 1078 - 1082 (2007/10/02)
Phenyl isothiocyanate reacts with ethyl γ-chloroacetoacetate in the presence of sodium hydride to give ethyl 2-anilino-4-oxo-4,5-dihydrothiophen-3-carboxylate (1b).The compound (1b) shows typical reactions of a keto-methylene compound; the Vilsmeier reage
