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140685-72-9

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140685-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140685-72-9 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 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 140685-72:
(8*1)+(7*4)+(6*0)+(5*6)+(4*8)+(3*5)+(2*7)+(1*2)=129
129 % 10 = 9
So 140685-72-9 is a valid CAS Registry Number.

140685-72-9Downstream Products

140685-72-9Relevant articles and documents

Facile unmasking of ethenylated isocytosines via diacetoxylation with lead tetraacetate

Sako,Totani,Hirota,Maki

, p. 235 - 237 (1992)

Treatment of ethenylated isocytosines, imidazolo[1,2-a]pyrimidine-5(1H)-one (2) and -7(8H)-one (3), with lead tetraacetate (LTA) in glacial acetic acid followed by alkaline hydrolysis resulted in the smooth removal of the ethenyl group to give isocytosine (1) in high yields. The unmasking of 2 by LTA to 1 was compared with the results using iodosylbenzene diacetate and N-bromosuccinimide.

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