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2531-70-6

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2531-70-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2531-70-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,3 and 1 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2531-70:
(6*2)+(5*5)+(4*3)+(3*1)+(2*7)+(1*0)=66
66 % 10 = 6
So 2531-70-6 is a valid CAS Registry Number.

2531-70-6Relevant articles and documents

A NEW METHOD FOR PREPARATION OF DIHYDRODINAPHTHOPYRANOPYRANS

Talinli, Naciye,Akar, Ahmet,Aydogan, A. Cevdet

, p. 3505 - 3508 (1987)

The syntheses of 7a,15a-dihydro-15a-methylnaphtho naphtho pyranopyran (II) and 7a,15a-dihydro-7a-methyl-15a-isopropyl naphthonaphthopyranopyran (III) from 2-naphthol and corresponding dimethylol ketones in one step were described.Amberlyst-15R was used as catalyst.

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