Terbutaline EP Impurity A CAS 99-10-5
| CAS No. | 99-10-5 |
| Molecular Formula | C7H6O4 |
| Molecular Weight | 154.12 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Terbutaline EP Impurity A (CAS 99-10-5, C7H6O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Terbutaline EP Impurity A is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 154.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Terbutaline EP Impurity A under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H6O4 |
| Molecular Weight | 154.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Terbutaline Standards
- Terbutaline impurity 115 (CAS 1217895-73-2)
- Terbutaline Impurity 13 (CAS 13494-10-5)
- Terbutaline Impurity 53 (CAS 51863-60-6)
- Terbutaline Impurity 59 (CAS 3378-72-1)
- Terbutaline Impurity 55 (CAS 26153-38-8)
- Terbutaline Impurity 25 (CAS 2352882-26-7)
- Terbutaline impurity 71 (CAS 13262-38-9)
- Terbutaline Impurity 61 (CAS 31844-86-7)
Recommended Standards
- 2,3-Dihydroxybenzoic Acid (CAS 303-38-8)
- Mesalazine EP Impurity G (CAS 490-79-9)
- Imidazole Pyruvic acid (CAS 2504-83-8)
- Benserazide Impurity 18 (CAS 2144-08-3)
- Sildenafil Impurity 79 (CAS CATO-C4X-112879)
- Carbasalate EP Impurity B (CAS 530-75-6)
- Sertraline EP Impurity A HCl (1R,4S-Isomer) (CAS 79896-32-5)
- N1,N4-Didodecyl-N1,N1,N4,N4-tetramethylbutane-1,4-diaminium bromide (CAS 6309-01-9)
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- Ibuprofen Impurity 126 (CAS CATO-C4X-1082126)
- 1-(3-Bromobenzyl)-5-methyl-1h-pyrazol-3-amine (CAS 1240573-55-0)
- D-Asp9-Tirzepatide (CAS CATO-CPTD788923)
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