Mcpa-Potassium Salt CAS 5221-16-9
| CAS No. | 5221-16-9 |
| Molecular Formula | C9H8ClO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Mcpa-Potassium Salt.
Mcpa-Potassium Salt (CAS 5221-16-9), molecular formula C9H8ClO3K and molecular weight 238.71 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Mcpa-Potassium Salt (C9H8ClO3K) contains a salt form, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.5, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 238.71 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Mcpa-Potassium Salt 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 | C9H8ClO3 K |
| Molecular Weight | 238.71 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Related Mcpa Standards
Recommended Standards
- 5-Azaspiro[2.4]heptane-1-carboxylic acid (CAS 746577-57-1)
- 4-Chloro-2-(tributylstannyl)pyridine (CAS 1204580-71-1)
- Piperazin-1-yl(pyridin-4-yl)methanone hydrochloride (CAS 163839-68-7)
- 1,5-Difluorobicyclo[3.3.1]Nonane (CAS 177483-89-5)
- 2-Amino-6-bromo-4H-chromen-4-one (CAS 81563-94-2)
- 5-(Chloromethyl)-1H-benzo[d][1,2,3]triazole (CAS 153915-05-0)
- 1-(5-Fluoro-pyrimidin-2-yl)-azetidine-3-carboxylic acid (CAS 1289386-41-9)
- Benzyl 2-Acetamido-2-deoxy-4,6-O-benzylidene-3-O-(2,3,4,6-tetra- O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranoside (CAS 86327-84-6)
- 4-Hydroxy-1,2,2,6,6-pentamethylpiperidine (CAS 2403-89-6)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com