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(3R,3aR)-3-Phenyl-3a,4-dihydro-3H-thiochromeno[4,3-c]pyrazole-2-carboxylic acid amide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

121802-91-3

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121802-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121802-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,8,0 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121802-91:
(8*1)+(7*2)+(6*1)+(5*8)+(4*0)+(3*2)+(2*9)+(1*1)=93
93 % 10 = 3
So 121802-91-3 is a valid CAS Registry Number.

121802-91-3Downstream Products

121802-91-3Relevant academic research and scientific papers

Fused Heterocycles. Part 3. Synthesis and Stereochemistry of Benzopyrano- and Benzothiapyrano-Pyrazoles

Toth, Gabor,Szoelloesy, Aron,Lorand, Tamas,Konya, Tibor,Szabo, Dezsoe,et al.

, p. 319 - 324 (2007/10/02)

Several tricyclic benzopyranopyrazole derivatives have been studied by 1H and 13C n.m.r. spectroscopy.They were prepared by treating 3-benzylidene-chromanones and -1-thiochromanones with semicarbazide or thiosemicarbazide: reactions which give only the cis-3-H,3a-H stereoisomers.

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