Tenofovir disoproxil Impurity 39 CAS 87-42-3
| CAS No. | 87-42-3 |
| Molecular Formula | C5H3ClN4 |
| Molecular Weight | 154.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Tenofovir disoproxil Impurity 39 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies Tenofovir disoproxil Impurity 39 (CAS 87-42-3), a pharmacopoeial impurity reference standard (molecular formula C5H3ClN4, MW 154.56 g/mol) used for the identification and quantification of trace impurities in APIs.
Tenofovir disoproxil Impurity 39 (C5H3ClN4) contains a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C5H3ClN4 |
| Molecular Weight | 154.56 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Tenofovir Standards
- Tenofovir Impurity 88 (CAS 1681-15-8)
- Tenofovir Impurity 165 (CAS 80549-03-7)
- Tenofovir Impurity 166 (CAS 262423-81-4)
- Tenofovir Disoproxil Impurity 45 (CAS 35273-90-6)
- Tenofovir disoproxil Impurity 96 (CAS 35180-01-9)
- Tenofovir Impurity 115 (CAS 155102-96-8)
- Tenofovir Impurity 144 (CAS 2715-68-6)
- Tenofovir disoproxil Impurity 136 (CAS CATO-C4X-1076136)
Recommended Standards
- Ibrutinib Impurity 55 (CAS 5399-92-8)
- 2-Chloro-1-ethynyl-4-fluorobenzene (CAS 1057670-02-6)
- 8-Chlorotetrazolo[1,5-a]pyridine (CAS 40971-88-8)
- 2-Chloro-4-ethynyl-1-fluorobenzene (CAS 1057670-04-8)
- Felodipine Impurity 12 (CAS 74073-22-6)
- Hydrochlorothiazide Impurity N17 (CAS 1954-94-5)
- Atosiban Impurity 102 (CAS CATO-C4X-2293102)
- Argatroban Impurity 10 (CAS 1448301-07-2)
- (S)-2-Amino-1-((S)-2-((benzyl(ethyl)amino)methyl)pyrrolidin-1-yl)-3-methylbutan-1-one (CAS 1401665-44-8)
- (S,R)-BtbbIn-Sabox (CAS 1435467-28-9)
- 2-(2-Mercapto-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)-N-(4-nitrophenyl)acetamide (CAS 1142200-43-8)
- 5-(chloromethyl)-1-(propan-2-yl)-1H-1,2,4-triazole hydrochloride (CAS 1803598-82-4)
- 3-[4-(1-aminoethyl)phenyl]-1,3-oxazolidin-2-one hydrochloride (CAS 1803591-45-8)
- Peptide 6A (H-6905.0005) (CAS 73549-32-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com