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206071-85-4

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206071-85-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 206071-85-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,6,0,7 and 1 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 206071-85:
(8*2)+(7*0)+(6*6)+(5*0)+(4*7)+(3*1)+(2*8)+(1*5)=104
104 % 10 = 4
So 206071-85-4 is a valid CAS Registry Number.

206071-85-4Relevant articles and documents

From phenylacetylphenylacetic acids and 1-benzylisoquinolines to 6,11-dihydrobenzo[b]naphtho[2,3-d]furan-6,11-diones, 6H-dibenzo[c,h]chroman-6-ones and 7,12-dihydro-5H-dibenzo[c,g]chroman-5,7,12-triones via 2-phenyl-3-hydroxy-1,4-dihydro-1,4-naphthalenediones or 2-phenyl-1-naphthols

Martínez, Elena,Martínez, Luis,Treus, Mónica,Estévez, Juan C.,Estévez, Ramón J.,Castedo, Luis

, p. 6023 - 6030 (2007/10/03)

We describe the synthesis of 6,11-dihydrobenzo[b]naphtho[2,3-d]furane-6,11-diones, 6H-Dibenzo[c,h]chroman-6-ones and 7,12-dihydro-5H-dibenzo[c,g]chroman-5,7,12-triones from 2-(2'-phenyl)-3-hydroxy-1,4-dihydro-1,4-naphthalenediones or 2-phenyl-1-naphthols obtained from 2-(2'-bromophenylacetyl)-phenylacetic acids or 1-benzylisoquinolines. (C) 2000 Elsevier Science Ltd.

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