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308368-55-0

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308368-55-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 308368-55-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,8,3,6 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 308368-55:
(8*3)+(7*0)+(6*8)+(5*3)+(4*6)+(3*8)+(2*5)+(1*5)=150
150 % 10 = 0
So 308368-55-0 is a valid CAS Registry Number.

308368-55-0Downstream Products

308368-55-0Relevant articles and documents

A synthesis of trifluoromethyl-substituted naphthalenes

Mellor,El-Sagheer,Salem

, p. 7383 - 7386 (2007/10/03)

Alkyl and aryl Grignard reagents add to 1-(3,4-dihydro-2H-5-pyranyl)-2,2,2-trifluoro-1-ethanone by 1,4-addition, but benzyl Grignard reagents react in good yield by 1,2-addition. Dehydration of the resulting alcohols affords intermediate dienes, which readily undergo cyclisation to give substituted trifluoromethyl-naphthalenes. Addition to other trifluoromethylketones permits access to a range of novel fluorinated naphthalenes and benzenes. (C) 2000 Published by Elsevier Science Ltd.

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