pTH (29-32) (human) trifluoroacetate salt H-Gln-Asp-Val-His-OH trifluoroacetate salt CAS 157876-49-8
| CAS No. | 157876-49-8 |
| Molecular Formula | C20H35N5O8 |
| Molecular Weight | 473.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
pTH (29-32) (human) trifluoroacetate salt H-Gln-Asp-Val-His-OH trifluoroacetate salt (CAS 157876-49-8) is a high-purity analytical reference standard with the molecular formula C20H35N5O8 and a molecular weight of 473.52 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, pTH (29-32) (human) trifluoroacetate salt H-Gln-Asp-Val-His-OH trifluoroacetate salt is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 473.52 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.
Physical & Chemical Properties
| Molecular Formula | C20H35N5O8 |
| Molecular Weight | 473.52 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 5 |
Related pTH Standards
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Recommended Standards
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- 2-Methoxy-9H-xanthen-9-one (CAS 1214-20-6)
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- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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