Methyltriphenylphosphonium Iodide-13C CAS 81826-67-7
| CAS No. | 81826-67-7 |
| Molecular Formula | C18[13C]H18P I |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Methyltriphenylphosphonium Iodide-13C is closely related to organophosphorus functionality, iodine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Methyltriphenylphosphonium Iodide-13C (CAS 81826-67-7), molecular formula C18[13C]H18P I and molecular weight 404.23 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to organophosphorus functionality, iodine substitution, a polycyclic aromatic system, Methyltriphenylphosphonium Iodide-13C is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 404.23 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 | C18[13C]H18P I |
| Molecular Weight | 404.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | I-containing |
Related Methyltriphenylphosphonium Standards
- Methyltriphenylphosphonium Chloride (CAS 1031-15-8)
- Methyltriphenylphosphonium methylcarbonate (CAS 1067966-63-5)
- Methyltriphenylphosphonium bromide (CAS 1779-49-3)
- Methyltriphenylphosphonium chloride 57283-72-4 METHYLTRIPHENYLPHOSPHONIUM CHLORIDE;PHOSPHONIUM, METHYLTRIPHENYL-, CHLORIDE SC10086 (CAS 57283-72-4)
Recommended Standards
- (1S)-1-[4-(2-methylpropoxy)phenyl]ethan-1-amine, acetic acid (CAS 1807938-90-4)
- Potassium (3,6-dihydro-2h-pyran-4-yl)trifluoroborate (CAS 1612893-03-4)
- 2-(4-(Difluoromethyl)-2,6-diiodopyridin-3-yl)acetic acid (CAS 1806799-16-5)
- 1-(3-Aminoquinolin-7-yl)ethan-1-one (CAS 1958063-12-1)
- Nonyl β-D-maltopyranoside (CAS 106402-05-5)
- Tert-butyl 5-(aminomethyl)-2,2-dimethylmorpholine-4-carboxylate (CAS 2413869-39-1)
- 3′,4-O-Dimethylcedrusin (CAS 127179-41-3)
- 4-(1H-imidazo[4,5-b]pyridin-2-yl)aniline (CAS 95377-69-8)
- 3-Bromo-2-oxopropanoyl chloride (CAS 75261-25-5)
- Semaglutide Impurity 1(OtBu-Ste-D-γGlu(OtBu)-AEEA-AEEA-OH) (CAS CATO-C4X-22261)
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