Carboxy-PEG4-sulfonic acid CAS 1817735-25-3
| CAS No. | 1817735-25-3 |
| Molecular Formula | C11H22O9S |
| Molecular Weight | 330.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Carboxy-PEG4-sulfonic acid (CAS 1817735-25-3), molecular formula C11H22O9S and molecular weight 330.35 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Carboxy-PEG4-sulfonic acid (C11H22O9S) contains a carbohydrate-derived structure, a sulfone group. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 330.35 g/mol, it falls into the moderately-high-molecular-weight range.
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), Carboxy-PEG4-sulfonic 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 | C11H22O9S |
| Molecular Weight | 330.35 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1995 |
| Sulfur Atoms | 1 |
Related Carboxy Standards
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Recommended Standards
- ((2R,3S,5S)-3-Fluoro-5-methoxytetrahydrofuran-2-yl)methyl [1,1'-biphenyl]-4-carboxylate (CAS 168786-98-9)
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- Tert-butyl 3-phenyl-3-(trifluoromethyl)piperazine-1-carboxylate (CAS 1639963-98-6)
- 5-((2-Fluorobenzyl)amino)-2-morpholinobenzoic acid (CAS 765925-11-9)
- 2-Sulfanyl-1h-1,3-benzodiazole-4-carboxylic acid (CAS 731742-58-8)
- Custom phenol Mix (CAS CATO-LCEM500793-IP)
- tert-Butyl (2-amino-4-chloro-5-fluorophenyl)carbamate (CAS 579474-50-3)
- Tetrakis[tris(dimethylamino)phosphoranylidenamino]phosphonium chloride (CAS 122951-89-7)
- 3-(Pyridin-4-yl)acrylic acid hydrochloride (CAS 98488-12-1)
- 8-iso Prostaglandin-F2-α (3,3,4,4-d (CAS 211105-40-7)
- 2-(4-Methyl-1H-pyrazol-1-yl)ethan-1-amine dihydrochloride (CAS 1609396-60-2)
- 5-ISOPROPYL-2-METHOXYBENZENE-1-SULFONYL CHLORIDE (CAS 88059-65-8)
- N-(3-acetylphenyl)-1-phenylmethanesulfonamide (CAS 193761-42-1)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
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