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3H-Naphtho[2,1-b]pyran-3-one, 2-[[4,5-dihydro-5-imino-4-(4-nitrophenyl)-1,3,4-thiadiazol-2-yl]carbonyl]- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

874657-34-8

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874657-34-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 874657-34-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,6,5 and 7 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 874657-34:
(8*8)+(7*7)+(6*4)+(5*6)+(4*5)+(3*7)+(2*3)+(1*4)=218
218 % 10 = 8
So 874657-34-8 is a valid CAS Registry Number.

874657-34-8Relevant academic research and scientific papers

Reactions of hydrazonoyl halides 541: Synthesis and reactivity of 3-aza-2-bromo-1-(3-oxo benzo[f]chromen-2-yl-3-(arylamino)prop-2-en-1-one

Abdelhamid, Abdou O.,Abdelaziz, Hassen M.

, p. 2791 - 2800 (2007)

2-(5-imino-4-aryl-4,5-dihydro-[1,3,4]-thiadiazole-2-(carbonyl)benzo[f] chro-men-2-one, 2-(2-amino-5-arylazothiazol-4-yl)benzo[f]chromen-3-one and ethyl 6-methyl-3-oxo-benzo [f]chromen-2-yl)-1,4-dihydro-[1,2,4]triazolo[4,3-a] pyrimidine-5-carboxy- late were synthesized from hydrazonoyl bromides. Structures of the newly synthesized compounds were established by elemental analysis, spectral data and alternative synthesis route whenever possible. Copyright Taylor & Francis Group, LLC.

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