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1820-89-9

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1820-89-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1820-89-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,2 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1820-89:
(6*1)+(5*8)+(4*2)+(3*0)+(2*8)+(1*9)=79
79 % 10 = 9
So 1820-89-9 is a valid CAS Registry Number.

1820-89-9Relevant articles and documents

Synthesis of antioxidative and anti-inflammatory drugs glucoconjugates

Uhrig, Rainer K.,Picard, Martin A.,Beyreuther, Konrad,Wiessler, Manfred

, p. 72 - 80 (2007/10/03)

Glucoconjugates of (±)-ibuprofen, (±)-α-tocopherol (vitamin E), gentisic acid, gallic acid, 2,6-bis(tert-butyl)-4-thiophenol, and N-acetyl-L-cysteine were prepared with the objective of increasing the bioavailability of such antioxidant and anti-inflammatory drugs. The O-glucosides were synthesized using benzylated α-D-glucopyranosyl trichloracetimidate as glycosyl donor. For the synthesis of the S-glucosides, the glycosyl donor 1,2,3,4,6-penta-O-acetyl-β-D-glucopyranose provided higher yields than the corresponding O-acetylated imidate. Copyright (C) 2000 Elsevier Science Ltd.

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