Tandospirone Impurity 9 CAS 541-59-3
| CAS No. | 541-59-3 |
| Molecular Formula | C4H3NO2 |
| Molecular Weight | 97.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Tandospirone Impurity 9 is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Tandospirone Impurity 9 (CAS 541-59-3) is a high-purity analytical reference standard with the molecular formula C4H3NO2 and a molecular weight of 97.07 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Tandospirone Impurity 9 is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 97.07 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C4H3NO2 |
| Molecular Weight | 97.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Tandospirone Standards
- Tandospirone Impurity 10 (CAS 826-62-0)
- Tandospirone Impurity 58(Lurasidone Impurity) (CAS 27862-85-7)
- Tandospirone HCl (CAS 99095-10-0)
- Tandospirone N-Oxide Impurity 12 HCl (CAS CATO-C4X-187512)
- Tandospirone Impurity 16 Citrate (CAS CATO-C4X-187517)
- Tandospirone Impurity 18 (CAS CATO-C4X-187518)
- Tandospirone citrate (CAS 112457-95-1)
- Tandospirone Impurity 9 HCl (CAS 33386-20-8(Free Amide))
Recommended Standards
- Oxazole-2-carbaldehyde (CAS 65373-52-6)
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- 1,2,4-Triazin-5(4H)-one (CAS 134434-30-3)
- 2-hydrazinyl-4,6-dimethylpyridine (CAS 4930-96-5)
- 5-(Hydroxymethyl)-2-pyrrolidinone (CAS 62400-75-3)
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- N,N-Bis(2-acrylamidoethyl)acrylamide (CAS 34330-10-4)
- N-Succinimidyl 7-(Diethylamino)coumarin-3-carboxylate (CAS 139346-57-9)
- 2-(2,6-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)acetonitrile (CAS 1256359-33-7)
- 2-Methyl-3-furanthiol (CAS 28588-74-1)
- 1-(2-Bromo-4-chlorophenyl)-2,5-dimethyl-1H-pyrrole (CAS 1502337-96-3)
- Ethyl 2-(2,3-difluorophenyl)acetate (CAS 302342-12-7)
- Peptide 74 (H-8545.0500) (CAS 132116-39-3)
Why CATO?
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