Indomethacin - CAS 53-86-1
Catalog number: 53-86-1
Category: APIs
Molecular Formula:
Molecular Weight:
Specification Sheet-Indomethacin 53-86-1  
Indomethacin is a synthetic nonsteroidal indole derivative with anti-inflammatory activity and chemopreventive properties. As a nonsteroidal anti-inflammatory drug (NSAID), indomethacin inhibits the enzyme cyclooxygenase, thereby preventing cyclooxygenase-mediated DNA adduct formation by heterocyclic aromatic amines. This agent also may inhibit the expression of multidrug-resistant protein type 1, resulting in increased efficacies of some antineoplastic agents in treating multi-drug resistant tumors. In addition, indomethacin activates phosphatases that inhibit the migration and proliferation of cancer cells and downregulates survivin, which may result in tumor cell apoptosis.
White powder
Indomethacin; Indometacin; Indocin.
Quality Standard:
1. Microfluidic approach to polymorph screening through antisolvent crystallization
Michael R. Thorson, Sachit Goyal, Yuchuan Gong,* Geoff G. Z. Zhangb and Paul J. A. Kenis*. CrystEngComm, 2012, 14, 2404–2412
To calculate supersaturation profiles for indomethacin (see below), we estimated the solubility of indomethacin experimentally as the solubility data of indomethacin in a binary solution of methanol and water was not available in the literature. Indomethacin was added to five, 20-mL glass vials (Kimmble/Chase). Mixtures of methanol and water (methanol to water volumetric ratios of 10 : 1, 8 : 2, 7 : 3, 6 : 4, and 5 : 5) were pipetted into glass vials with an incremental volume of 0.5 ml, 2 ml, or 5 ml depending on the total volume of the added solvent.
2. Gastroprotective potential against indomethacin and safety assessment of the homology of medicine and food formula cuttlebone complex
Mei-Yin Chien, Yi-Ting Lin, Chih-Min Yang* and Chao-Hsiang Chen*. Food Funct.,2015, 6,2803–2812
The rats were orally pre-treated once with indomethacin for 1 h, and then orally received CBC once for 4 h to determine the therapeutic effects of CBC against gastric ulceration induced by indomethacin. All of the 8 mice in the indomethacin-treated group developed gastric ulcers, whereas 6 and 3 of the 8 mice in the medium- and high-CBC group developed gastric ulcers, respectively. Indomethacin treatment significantly increased the ulcer index, ulcerous lesions, and erosion and blood congestion, but decreased the PGE2 content.
3. Characterisation of organic solid forms and real-time in situ monitoring of their transformations using solid-state fluorescence
Mathieu Frenette, Gonzalo Cosa* and Tomislav Friscic*. CrystEngComm, 2013, 15, 5100–5106
To obtain indomethacin methanol solvate, a saturated solution of indomethacin in boiling methanol was further diluted with methanol and cooled to yield pale yellow needles. The needles were recovered by filtration, washed with cold methanol, dried under vacuum and kept in a sealed vial at room temperature. The PXRD and DSC data matched those reported for the crystalline methanol solvate (CSD code BANMUZ). For the synthesis of a-indomethacin, water was added to the recrystallisation supernatant, immediately yielding a white precipitate. Filtration and thorough drying under vacuum yielded a-indomethacin as previously described.
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CAS 53-86-1 Indomethacin

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