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| Product | Description | |
|---|---|---|
| Methyl acetylsalicylate | Methyl acetylsalicylate. Uses: For analytical and research use. Group: Impurity standards. CAS No. 16475-90-4. Molecular Formula: C10H10O4. Mole Weight: 194.19. Catalog: APB16475904. |  |
| 5-Acetylsalicylic Acid Methyl Ester | 5-Acetylsalicylic Acid Methyl Ester. Group: Biochemicals. Alternative Names: 5-Acetyl-2-hydroxy-benzoic Acid Methyl Ester;Methyl 2-Hydroxy-5-acetylbenzoate; Methyl 3-Acetyl-6-hydroxybenzoate; Methyl 5-Acetyl-2-hydroxybenzoate; Methyl 5-Acetylsalicylate; NSC 67867. Grades: Highly Purified. CAS No. 16475-90-4. Pack Sizes: 1g. US Biological Life Sciences. |  Worldwide |
| Gentisic Acid, Sodium Salt (Sodium Gentisate) | Gentisic acid (2,5-Dihydroxybenzoic acid; 5-hydroxysalicylic acid) is chemically related to salicylate and aspirin (acetylsalicylate) and shares with the latter agent analgesic and anti-inflammatory properties. Gentisic acid is an aromatic carboxylic acid used as a sample matrix in Matrix-assisted laser desorption/ionization Mass spectrometry. As a hydroquinone, it is readily oxidized and is used as an antioxidant excipient in some pharmaceutical preparations.In vitro stabilization of low-tin bone-imaging agents has previously been achieved with ascorbic acid. Gentisic acid is shown to be an equally effective antioxidant for the (1-hydroxyethylidene) diphosphonate (HEDP) and hydroxy methyl enediphosphonate (HMDP) skeletal agents. In vitro studies show less than 2% free sodium [99mTc] pertechnetate at 24 hr with the gentisic acid stabilizer. Studies in guinea pigs at 3 and 24 hr—whether with C-14- or H-3-labeled gentisic acid as stabilizer—show no alteration in the biodistribution of either skeletal imaging agent by the addition of the gentisic acid.Gentisic acid is a safe and effective stabilizer, and clinical studies have shown bioequivalency with ascorbic acid. Gentisic acid has been shown to be one of the most commenly occurring aromatic acids of green plants. Group: Biochemicals. Alternative Names: 2,5-Dihydroxybenzoic acid, Sodium Salt; 5-Hydroxysalicylate sodium. Grades: Highly Purified. CAS No. 4955-90-2. Pack Sizes: 10g, 25g, 50g, 100g, 250g. Molecular Formula: C7H5O4Na, Molecular Weight: 176.1. US Biological Life Sciences. | Worldwide |
| 5-acetylsalicylamide (methyl salicylate impurity 4. Labetalol hydrochloride impurity 7) | 5-acetylsalicylamide (methyl salicylate impurity 4. Labetalol hydrochloride impurity 7). Uses: For analytical and research use. Group: Impurity standards. CAS No. 40187-51-7. Molecular Formula: C9H9NO3. Mole Weight: 179.18. Catalog: APB40187517. | |
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