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128742-85-8

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128742-85-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128742-85-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,4 and 2 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 128742-85:
(8*1)+(7*2)+(6*8)+(5*7)+(4*4)+(3*2)+(2*8)+(1*5)=148
148 % 10 = 8
So 128742-85-8 is a valid CAS Registry Number.

128742-85-8Upstream product

128742-85-8Downstream Products

128742-85-8Relevant articles and documents

Rearrangements in the Furan Series. IV. The Reaction Between Furan-2-carbaldehyde and Aniline

Lewis, Keith G.,Mulquiney, Colin E.

, p. 655 - 663 (1990)

It has been shown that reaction of furan-2-carbaldehyde with three or four molecules of aniline gives rise to a substance assigned as 4-phenyl-1,6-di(phenylamino)-7-phenylimino-3a,4,4a,7,7a,7b-hexahydro-1H-dicyclopentapyrrol-2(3H)-one rather than the simple anil previoulsy proposed.The use of an excess of furan-2-carbaldehyde gives not furoin anil but a compound of polymeric structure.

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