Phenylthiohydantoin-norleucine CAS 4333-22-6
| CAS No. | 4333-22-6 |
| Molecular Formula | C9H8N2OS |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Phenylthiohydantoin-norleucine (C9H8N2OSC6H13NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 323.41 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Phenylthiohydantoin-norleucine (CAS 4333-22-6), molecular formula C9H8N2OSC6H13NO2 and molecular weight 323.41 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C9H8N2OS C6H13NO2 |
| Molecular Weight | 323.41 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Phenylthiohydantoin Standards
- Phenylthiohydantoin-glycine (CAS 2010-15-3)
- Phenylthiohydantoin-tyrosine (CAS 4332-95-0)
- Phenylthiohydantoin-valine (CAS 4333-20-4)
- Phenylthiohydantoin-proline (CAS 4333-21-5)
- Phenylthiohydantoin-leucine (CAS 4399-40-0)
- Phenylthiohydantoin-isoleucine (contains PTH-alloisoleucine) (CAS 5066-94-4)
- Phenylthiohydantoin-tryptophan (CAS 5789-24-2)
- Phenylthiohydantoin-Δ-threonine (CAS 5800-50-0)
Recommended Standards
- (2R,4R)-4-Benzyl-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic Acid (CAS 158459-13-3)
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- Didemethyl chloro citalopram hydrochloride (CAS 887354-48-5)
- 2-Methoxy-4-(((1-methyl-1H-pyrazol-3-yl)amino)methyl)phenol hydrochloride (CAS 1856046-44-0)
- 9,10-Anthracenedione, 2,3-dihydro-1,4-dihydroxy- (CAS 40498-13-3)
- 2-Bromonaphthalene-1,2,3,4,4a,8a-13C6 (CAS 1262053-54-2)
- Tert-butyl 8-amino-4-azabicyclo[5.1.0]Octane-4-carboxylate (CAS 1535438-69-7)
- 3-[(2,3-Dimethoxyphenyl)methyl]azetidine (CAS 937616-94-9)
- 2-Oxopropyl 4-methoxybenzoate (CAS 101395-49-7)
- Neuropeptide W-23 (rat) (CAS 383415-89-2)
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