299175-23-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299175-23-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,1,7 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 299175-23:
(8*2)+(7*9)+(6*9)+(5*1)+(4*7)+(3*5)+(2*2)+(1*3)=188
188 % 10 = 8
So 299175-23-8 is a valid CAS Registry Number.
299175-23-8Relevant articles and documents
2,4-Diamino-1-thia-3-azabutadienes, intermediates in heterocyclic synthesis
Friot,Reliquet,Reliquet,Meslin
, p. 135 - 149 (2007/10/03)
2,4-Diamino-1-thia-3-azabutadienes 1 were studied. Methylation occured at sulfur and acylation at nitrogen hound to the 2 position. Alkylation by α-bromoketones gave rise to 2-amino-5-acylthiazoles. Upon treatment with acrylic dienophiles compounds 1 reac