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4H-Thiopyran, 4-(4-methylphenyl)-2,4,6-triphenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

28278-45-7

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28278-45-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28278-45-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,2,7 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 28278-45:
(7*2)+(6*8)+(5*2)+(4*7)+(3*8)+(2*4)+(1*5)=137
137 % 10 = 7
So 28278-45-7 is a valid CAS Registry Number.

28278-45-7Downstream Products

28278-45-7Relevant academic research and scientific papers

Novel Preparation and Photochromic Properties of 2,4,4,6-Tetraaryl-4H-thiopyrans

Sebek, Pavel,Nespurek, Stanislav,Hrabal, Richard,Adamec, Mojmir,Kuthan, Josef

, p. 1301 - 1308 (2007/10/02)

1,3,3,5-Tetraarylpentane-1,5-diones 2 and 5 react with tetraphosphodecasulfide in xylene at elevated temperature to give the corresponding 2,4,4,6-tetraaryl-4H-thiopyrans 4 and 7.The mechanism of this transformation involves a fast initial step of dehydra

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