Cas 128836-83-9,cassialactone dimethyl ether p-methoxybenzoate

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Check Digit Verification of cas no

The CAS Registry Mumber 128836-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,3 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128836-83:
(8*1)+(7*2)+(6*8)+(5*8)+(4*3)+(3*6)+(2*8)+(1*3)=159
159 % 10 = 9
So 128836-83-9 is a valid CAS Registry Number.

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128836-83-9Relevant academic research and scientific papers

REVISION OF THE STRUCTURE AND ABSOLUTE CONFIGURATION OF CASSIALACTONE

Kitanaka, Susumu,Ogata, Koreharu,Takido, Michio

, p. 999 - 1002 (1990)

The structure of cassialactone isolated from the seeds of Cassia obtusifolia was revised as (S)-3,4-dihydro-9,10-dihydroxy-3-hydroxymethyl-7-methoxy-3-methyl-1H-naphthopyran-1-one based on X-ray analysis and its CD spectrum.

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