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81763-39-5

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81763-39-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81763-39-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,6 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81763-39:
(7*8)+(6*1)+(5*7)+(4*6)+(3*3)+(2*3)+(1*9)=145
145 % 10 = 5
So 81763-39-5 is a valid CAS Registry Number.

81763-39-5Relevant articles and documents

Synthesis of pseudo-sugar derivatives from 5exo, 6exo-dihydroxy-endo- and -exo-7-oxabicycloheptane-2-carboxylic acids

Ogawa, Seiichiro,Uemura, Masaki,Fujita, Toichi

, p. 213 - 221 (2007/10/02)

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COMPLEMENTARY SHORT SYNTHESES OF (+/-)-METHYL SHIKIMATE

Campbell, Malcolm M.,Kaye, Aston D.,Sainsbury, Malcolm,Yavarzadeh, Roya

, p. 1629 - 1630 (2007/10/02)

Two syntheses of (+/-)-methyl shikimate from the adduct of furan and methyl acrylate are described.One requires the regioselective hydroxylation of (+/-)-5β,6β-dihydroxy-O,O-isopropylidene-2-methoxycarbonylcyclohexa-1,3-diene and the other cis-dihydroxyla

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