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[1]Benzopyrano[4,3-c]pyrazol-3(2H)-one, 2-(4-chlorophenyl)-4-[(methylsulfonyl)methyl]- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128789-16-2

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128789-16-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128789-16-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,8 and 9 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 128789-16:
(8*1)+(7*2)+(6*8)+(5*7)+(4*8)+(3*9)+(2*1)+(1*6)=172
172 % 10 = 2
So 128789-16-2 is a valid CAS Registry Number.

128789-16-2Downstream Products

128789-16-2Relevant academic research and scientific papers

Therapeutic agents

-

, (2008/06/13)

This invention relates to compounds of formula I wherein R1 represents hydrogen or together with R2 represents a bond; R2 together with either one of R1 and R3 represents a bond; R3 together with either one of R2 and R4 represents a bond; R4 represents hydrogen or together with R3 represents a bond; R5 represents hydrogen or methyl; R6 represents hydrogen, halo, a C2 6 alkanoyl group, a C2 6 alkoxycarbonyl group, a C1 6 alkylthio group, a C1 6 alkylsulphinyl group, a C1 6 alkylsulphonyl group, carbamoyl, carboxy, or R5 and R6 together with the carbon atom to which they are attached represent a cyclopropyl group; R7 represents hydrogen, halo, trifluoromethyl, methoxy, a C1 6 alkyl group, a C1 6 alkylthio group or a C1 6 alkylsulphinyl group; R8 represents hydrogen, halo or trifluoromethyl; R9 and R10, which may be the same or different, each represent halo; or R9 represents hydrogen and R10 represents hydrogen, halo, trifluoromethyl, hydroxy, nitro, a C2 6 alkanoyloxy group, a C1 6 alkyl group or a C1 6 alkoxy group, which have immunomodulatory activity. Compositions containing these compounds and processes to make them are also disclosed.

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