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140683-72-3

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140683-72-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140683-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,6,8 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 140683-72:
(8*1)+(7*4)+(6*0)+(5*6)+(4*8)+(3*3)+(2*7)+(1*2)=123
123 % 10 = 3
So 140683-72-3 is a valid CAS Registry Number.

140683-72-3Relevant articles and documents

2-CARBETHOXY-4H-3,1- BENZOXAZIN-4-ONE. 2. HYDRAZINOLYSIS

Ukrainets, I. V.,Bezuglyi, P. A.,Treskaya, V. I.,Turov, A. V.,Slobodzyan, S. V.,Gorokhova, O. V.

, p. 907 - 909 (2007/10/02)

3-Amino-2-carboxymethylquinazolin-4(3H)-one was obtained by hydrazinolysis of 2-carbethoxymethyl-4H-3,1-benzoxazin-4-one.Its transformations into 2-hydroxypyrazoloquinazolin-9(1H)-one and 3-amino-2-hydrazido-(or benzylamido)carbonylmethylquinazolin

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