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tetrahydro-5,6,7,8 dimethyl-7,7 thio-1 thioxo-2 p-tolyl-3 chromenone-5 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

79887-40-4

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79887-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79887-40-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,8,8 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 79887-40:
(7*7)+(6*9)+(5*8)+(4*8)+(3*7)+(2*4)+(1*0)=204
204 % 10 = 4
So 79887-40-4 is a valid CAS Registry Number.

79887-40-4Relevant academic research and scientific papers

Composes sulfures heterocycliques. XCIV. Synthese et structure de derives carbonyles et thiocarbonyles de tetrahydro-5,6,7,8 thio-1 chromenones-5

Mosaddak, Mahjouba,Catel, Jean-Marie,Pinel, Raoul,Mollier, Yves

, p. 125 - 128 (2007/10/02)

The 4-aryl-3-methylthio-1,2-dithiolylium ions react with cyclohexane-1,3-diones, to give both 3-aryl-5,6,7,8-tetrahydro-1-thiochromene-2,5-diones and their 2-thioxo derivatives.The structure of these compounds is established by physical methods: IR, dipole moments and particularly NMR with use of shift reagents.

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