Emtricitabine Menthyl Ester Impurity CAS 764659-72-5
| CAS No. | 764659-72-5 |
| Molecular Formula | C18H26FN3O4S |
| Molecular Weight | 399.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Emtricitabine Menthyl Ester Impurity.
Emtricitabine Menthyl Ester Impurity (CAS 764659-72-5), molecular formula C18H26FN3O4S and molecular weight 399.48 g/mol, is a CATO reference standard with documented purity and traceability.
Emtricitabine Menthyl Ester Impurity (C18H26FN3O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Emtricitabine Menthyl Ester Impurity meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H26FN3O4S |
| Molecular Weight | 399.48 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Emtricitabine Standards
- Emtricitabine Impurity 16 (CAS 764659-79-2)
- Emtricitabine Impurity 30 (CAS 147126-75-8)
- Emtricitabine impurity 53 (CAS 147027-01-8)
- Emtricitabine Impurity 57 (CAS 1773498-61-5)
- Emtricitabine Impurity 59 (CAS 1422361-25-8)
- Emtricitabine O-β-D-Glucuronide (CAS 152128-78-4)
- Emtricitabine Impurity 36 (CAS CATO-C4X-123236)
- Emtricitabine Isopropyl Carbamate (CAS CATO-C4X-123217)
Recommended Standards
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- Daphnicyclidin H (CAS 385384-29-2)
- HLM 006474 (CAS 353519-63-8)
- Aminooxy-PEG8-methane (CAS 2055024-52-5)
- Benzyl 4-(2-methoxy-2-oxoethylidene)piperidine-1-carboxylate (CAS 40112-93-4)
- (2E)-2,3-Dichloro-N-(2-chlorophenyl)-3-(propane-2-sulfonyl)prop-2-enamide (CAS 861211-87-2)
- 4-(Chloromethyl)-1,2-dihydroisoquinolin-1-one (CAS 2092777-38-1)
- 1-Methyl-2-oxo-1,2,3,4-tetrahydroquinoline-6-boronic Acid Pinacol Ester (CAS 1427587-32-3)
- 4-Amino-3-(furan-2-yl)-1-(piperidin-1-yl)butan-1-one (CAS 1263208-08-7)
- 4-(5-(3,4-Dihydro-2H-pyrrol-5-yl)-3-methylpyridin-2-yl)morpholine (CAS 1352540-29-4)
- Aripiprazole Related Compound B (CAS 889443-20-3)
- 1-(4-Fluorobenzyl)-3-(4-fluorophenyl)imidazolidin-2-one (CAS 866149-36-2)
- 4-(Bromomethyl)-2-chlorooxazole (CAS 706789-08-4)
- Tirzepatide Impurity 26 X TFA Salt (CAS CATO-C4X-324026)
Why CATO?
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