(1H-Inden-1-yl)phosphonic acid CAS 387361-84-4
| CAS No. | 387361-84-4 |
| Molecular Formula | C9H9O3P |
| Molecular Weight | 196.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of (1H-Inden-1-yl)phosphonic acid (C9H9O3P) is characterized by a phosphonate group, 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).
(1H-Inden-1-yl)phosphonic acid (CAS 387361-84-4), molecular formula C9H9O3P and molecular weight 196.14 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (1H-Inden-1-yl)phosphonic acid 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.
Physical & Chemical Properties
| Molecular Formula | C9H9O3P |
| Molecular Weight | 196.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related H Standards
- 2-(1H-Inden-2-yl)-5-methylfuran (CAS 291773-42-7)
- (1H-Inden-2-yl)dimethylphosphine oxide (CAS 857444-11-2)
- 2-((1H-Inden-3-yl)methyl)tetrahydrofuran (CAS 671186-30-4)
- 1H-INDEN-1-AMINE, 2,3-DIHYDRO-4-(TRIFLUOROMETHYL)- (CAS 68755-43-1)
- (1H-Inden-1-yl)trimethylsilane (CAS 18053-75-3)
- 3-(1H-inden-3-yl)propanoic acid (CAS 100518-71-6)
- 2-(1H-Inden-2-yl)furan (CAS 154264-93-4)
- 1H-INDEN-1-ONE, 5-BROMO-2,3-DIHYDRO- 34598-49-7 5-BROMO-2,3-DIHYDRO-1-OXO-1H-INDENE 5-BROMO-2,3-DIHYDRO-1H-INDEN-1-ONE 5-BROMO-2,3-DIHYDROINDEN-1-ONE 5-BROMOINDAN-1-ONE BC003376 (CAS 34598-49-7)
Recommended Standards
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- 1-Bromooctane-8,8,8-d3 (CAS 69373-25-7)
- 2-Nitrofluorene-d9 (CAS 128008-87-7)
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- 4-(1-Naphthyloxy)-3-(trifluoromethyl)aniline (CAS 83054-43-7)
- Fluocinolone Acetonide Impurity 27 (CAS 3932-49-8)
- 2-(Tert-butyl)-7-(piperazin-1-yl)-5-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine (CAS 516494-46-5)
- 1-(1H-Pyrrol-3-yl)propan-1-ol (CAS 99282-49-2)
- (S)-2,2'-Binaphthyl-20-crown-6 (CAS 41024-92-4)
- Neostigmine EP Impurity B (CAS 99-07-0)
- (R)-Methyl 2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetate (CAS 565460-55-1)
- (Met(O)2?)-Glucagon (1-29) (human, rat, porcine) (CAS 75217-63-9)
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