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2-phenyl-3-acetyl-4-(tolyl-4)-4H-chromene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

131882-52-5

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131882-52-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131882-52-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,8,8 and 2 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 131882-52:
(8*1)+(7*3)+(6*1)+(5*8)+(4*8)+(3*2)+(2*5)+(1*2)=125
125 % 10 = 5
So 131882-52-5 is a valid CAS Registry Number.

131882-52-5Downstream Products

131882-52-5Relevant academic research and scientific papers

ACYLATION OF 2,4-DIARYL-4H-CHROMENES BY THE ACTION OF ACETIC ANHYDRIDE AND PERCHLORIC ACID

Suzdalev, K. F.,Koblik, A. V.

, p. 870 - 873 (1990)

4H-Chromenes were found to be acylated at the 3-position by the action of acetic anhydride and perchloric acid.The structure was determined of other reaction products - the indenobenzopyrylium and 2,4-diaryl-1-benzopyrylium salts.

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