117838-25-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117838-25-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,3 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 117838-25:
(8*1)+(7*1)+(6*7)+(5*8)+(4*3)+(3*8)+(2*2)+(1*5)=142
142 % 10 = 2
So 117838-25-2 is a valid CAS Registry Number.
117838-25-2Relevant academic research and scientific papers
Studies in Heterocyclisation of Michael Products from Isoxazoles
Venkateshwarlu, V.,Krishnamurthy, A.,Rao, Cjanakiram
, p. 565 - 567 (2007/10/02)
The Michael adducts (2a-f) obtained by the interaction of 3-methyl-4-nitro-5-styrylisoxazoles (1) and ethyl acetoacetate have been treated with resorcinol and hydroxylamine separately.With resorcinol the chromones (3a-f) are obtained whereas with hydroxyl
