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947612-12-6

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947612-12-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 947612-12-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,7,6,1 and 2 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 947612-12:
(8*9)+(7*4)+(6*7)+(5*6)+(4*1)+(3*2)+(2*1)+(1*2)=186
186 % 10 = 6
So 947612-12-6 is a valid CAS Registry Number.

947612-12-6Relevant articles and documents

Miscrowave-assisted efficient synthesis of polymethoxyacetophenones and natural polymethoxyflavones, and thier inhibitory effects on melanogenesis

Tsukayama, Masao,Kusunoki, Eiji,Hossain, Mohammad M.,Kawamura, Yasuhiko,Hayashi, Shinji

, p. 1589 - 1600 (2007)

Microwave, assisted Friedel-Crafts acetylation of polymethoxybenzenes with acetic anhydride in the presence of In(CF3SO3)3 under solvent-free conditions was achieved rapidly to give polymethoxyacetophenones in high yields. Microwave-assisted benzoylation of 2'-hydroxypolymethoxyacetophenones with polymethoxybenzoyl chlorides, followed by the rearrangement of the resulting benzoates and the final formation of natural polymethoxyflavones was achieved rapidly and efficiently. The polymethoxyflavones showed inhibitory effects on melanogenesis in human melanoma cells.

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