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525-27-9

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525-27-9 Usage

Purification Methods

Recrystallise the naphthol from pet ether. Its methyl ether has m 115o (from EtOH/pet ether). [Buu-Hoi et al. J Org Chem 15 1064 1950, Beilstein 6 IV 4367.]

Check Digit Verification of cas no

The CAS Registry Mumber 525-27-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 5 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 525-27:
(5*5)+(4*2)+(3*5)+(2*2)+(1*7)=59
59 % 10 = 9
So 525-27-9 is a valid CAS Registry Number.

525-27-9Downstream Products

525-27-9Relevant articles and documents

Naphthalene Tetrachlorides and Related Compounds. Part 12. Influence of Some 1-Substituents on the Course of Chlorination of Derivatives of 2-Naphthol

Calvert, David J.,Mare, Peter B. D. de la,Suzuki, Hitomi

, p. 255 - 260 (2007/10/02)

The chlorinations of 1-methyl-2-naphthol, 1-bromo-2-naphthol, 2,2'-dihydroxy-1,1'-dinaphthylmethane, and 6-t-butyl-2-naphthol with excess of chlorine in acetic acid give tetralin-2-ones analogous to that formed from 1-chloro-2-naphthol. 1,6-Di-t-butyl-2-naphthol, however, gives only 1,6-di-t-butyl-1,3-dichloro-1,2-dihydronaphthalene; 1-iodo-2-naphthol gives some 1,1,3,4-tetrachlorotetralin-2-one in acetic acid, whereas in chloroform it gives a mixture from which r-1,c-2,t-3,t-4,5,7-hexachlorotetralin-6-ol was isolated.The structures of these products and the pathways leading to them are discussed.

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