Biotin Impurity 04 CAS 26339-40-2
| CAS No. | 26339-40-2 |
| Molecular Formula | C19H18N2O5 |
| Molecular Weight | 354.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Biotin Impurity 04 (CAS 26339-40-2) is a certified pharmaceutical impurity reference standard with the molecular formula C19H18N2O5 and a molecular weight of 354.36 g/mol.
Based on its molecular formula C19H18N2O5, Biotin Impurity 04 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 354.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), Biotin Impurity 04 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 | C19H18N2O5 |
| Molecular Weight | 354.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 2 |
Related Biotin Standards
- Biotin Impurity 36 (CAS 1535184-53-2)
- Biotin-PEG1-azide (CAS 1204085-48-2)
- D-(+)Biotin 2-Nitrophenyl Ester (CAS 131303-71-4)
- Biotin-C2-maleimide (CAS 139554-72-6)
- Biotin Impurity N1 (CAS 28092-52-6)
- Biotin impurity 23 (CAS 33607-57-7)
- Biotin-PEG2-C1-aldehyde (CAS 2408505-11-1)
- Biotin Impurity 4 (CAS 76335-62-1)
Recommended Standards
- Benzoic acid, 5-methoxy-4-[3-(4-morpholinyl)propoxy]-2-nitro-, methyl ester (CAS 944833-62-9)
- cis-1,3-Dibenzyl-2-imidazolidone-4,5-dicarboxylic Acid (CAS 51591-75-4)
- 7,8-Dimethoxy-3-(4-nitrobenzyl)-1,3-dihydro-2H-benzo[d]azepin-2-one (CAS 866135-95-7)
- Di-tert-butyl (4-hydroxy-3-nitrophenyl)iminodicarbonate (CAS 2616667-58-2)
- Olopatadine Impurity 43 (CAS 1127893-02-0)
- Phloroglucinol Impurity 22 (CAS 106-40-1)
- Erythromycin Impurity 50 (CAS 37152-22-0)
- (cyclopropylmethyl)[(6-methylpyridin-3-yl)methyl]amine hydrochloride (CAS 1909311-99-4)
- 1-[2-chloro-1-(chloromethyl)-3,3,3-trifluoroprop-1-enyl]benzene (CAS 256525-85-6)
- 3-Amino-3-cyclobutylpropanoic acid (CAS 887584-53-4)
- (2-Bromo-3-methyl-5-(trifluoromethyl)phenyl)boronic acid (CAS 2225169-16-2)
- Methyl 3-propylpyrrolidine-1-carboxylate (CAS 142819-46-3)
- 3-(4-Bromothiophen-2-yl)-N-methylpropanamide (CAS 1424309-67-0)
- Palmitoyl Pentapeptide-4 (CAS 214047-00-4)
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