Phloroglucinol Impurity 77 CAS CATO-C4X-221777
| CAS No. | CATO-C4X-221777 |
| Molecular Formula | C12H10O7 |
| Molecular Weight | 266.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Phloroglucinol Impurity 77 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Phloroglucinol Impurity 77 (CAS CATO-C4X-221777), a pharmacopoeial impurity reference standard (molecular formula C12H10O7, MW 266.20 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Phloroglucinol Impurity 77 (C12H10O7) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C12H10O7 |
| Molecular Weight | 266.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Phloroglucinol Standards
- Phloroglucinol Impurity 42 (CAS CATO-C4X-221742)
- Phloroglucinol Impurity 69 (CAS 53254-99-2)
- Phloroglucinol Impurity 2 (CAS 61524-51-4)
- Phloroglucinol Impurity 4 (CAS 871893-76-4)
- Phloroglucinol Impurity 39 (CAS CATO-C4X-221739)
- Phloroglucinol impurity 53 (CAS CATO-C4X-221753)
- Phloroglucinol Impurity 79 (CAS CATO-C4X-221779)
- Phloroglucinol Impurity 74 (CAS CATO-C4X-221774)
Recommended Standards
- Cedazuridine (CAS 1141397-80-9)
- 5-Methyl-4-((5-methyl-3-nitro-1h-pyrazol-1-yl)methyl)isoxazole-3-carboxylic acid (CAS 1006441-81-1)
- Glycerin monocitrate (CAS 36291-32-4)
- Methyl 5-methyl-4-((3-nitro-1h-pyrazol-1-yl)methyl)isoxazole-3-carboxylate (CAS 1011350-32-5)
- Formoterol impurity 123 (CAS CATO-C4X-1525123)
- Finerenone Impurity 117 (CAS CATO-C4X-2880117)
- Sunitinib Impurity 16 (CAS 56341-41-4)
- 3-(4-Ethoxybenzyl)pyrrolidine (CAS 1219977-27-1)
- N-Methylbut-3-en-1-amine hydrochloride (CAS 55984-59-3)
- 1-(2,5-Dimethylphenyl)-3-(m-tolyl)propan-1-one (CAS 898790-75-5)
- 5-(4-Ethylphenyl)-7-(2-methoxyphenyl)-4,5,6,7-tetrahydro-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 575466-56-7)
- tert-Butyl 4-[[2-(4-chlorophenyl)-4,4-dimethylcyclohex-1-enyl]methyl]piperazine-1-carboxylate (CAS 1228780-71-9)
- 2,5-Difluoro-4-iodoaniline (CAS 155906-13-1)
- Semaglutide impurity 200 (CAS CATO-C4X-2226200)
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