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137475-80-0

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137475-80-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137475-80-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,4,7 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137475-80:
(8*1)+(7*3)+(6*7)+(5*4)+(4*7)+(3*5)+(2*8)+(1*0)=150
150 % 10 = 0
So 137475-80-0 is a valid CAS Registry Number.

137475-80-0Downstream Products

137475-80-0Relevant articles and documents

AMINO ACIDS IN THE SYNTHESIS OF HETEROCYCLIC SYSTEMS A NOVEL SYNTHESIS OF FUSED PYRIDINONES

Copar, Anton,Stanovnik, Branko,Tisler, Miha

, p. 533 - 538 (2007/10/02)

Enamines 6, prepared from heterocycles with a methyl group at α-position in respect to ring nitrogen atom 1 and N,N-dimethylformamide dimethyl acetal (3) or t-butoxy-bis(dimethylamino)methane (4), are transformed with 2-phenyl-5(4H)-oxazolone (7) into the corresponding intermediates 9, which cyclize into azinopyridinones 11.The method represents a novel synthesis of this class of fused systems.

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