Methicillin CAS 61-32-5
| CAS No. | 61-32-5 |
| Molecular Formula | C17H20N2O6S |
| Molecular Weight | 380.42 g/mol |
| 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 Methicillin.
Methicillin (CAS 61-32-5), molecular formula C17H20N2O6S and molecular weight 380.42 g/mol, is a CATO reference standard with documented purity and traceability.
Methicillin (C17H20N2O6S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H20N2O6S |
| Molecular Weight | 380.42 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methicillin Standards
Recommended Standards
- KU-0058948 (CAS 763111-49-5)
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- Ethyl 4-[(4-methoxyphenyl)methoxy]-6-methyl-2-(methylsulfonyl)-5-pyrimidinecarboxylate (CAS 2875129-48-7)
- N-(3,4-Dimethylphenyl)-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinoline-5-sulfonamide (CAS 670266-78-1)
- Boc-Ile-ONp (CAS 16948-38-2)
- 1-(2-Allylphenoxy)-3-aminopropan-2-ol (CAS 32352-07-1)
- Methyl 2-cyano(2,2-dimethyltetrahydro-4H-pyran-4-ylidene)acetate (CAS 14389-99-2)
- 8-Iodo-1,6-naphthyridin-5-ol (CAS 107484-68-4)
- Palbociclib Impurity 110 (CAS 571189-23-6)
- 2-(4-Fluorobenzyl)-6,7-dihydro-5H-thiazolo[3,2-a]pyrimidin-3(2H)-one (CAS 1049144-01-5)
- 2-Acetamidonicotinic acid (CAS 17782-03-5)
- 1-(Difluorophenylmethyl)-2-fluoro-3-(trifluoromethyl)benzene (CAS 1138445-34-7)
- 3-(3-Chlorophenyl)azetidine hydrochloride (CAS 1203685-26-0)
- Semaglutide impurity 94 (CAS CATO-C4X-222694)
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