D-Folic Acid CAS 65165-91-5
| CAS No. | 65165-91-5 |
| Molecular Formula | C19H19N7O6 |
| Molecular Weight | 441.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, D-Folic Acid (C19H19N7O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 441.40 g/mol, it falls into the moderately-high-molecular-weight range. 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).
CATO supplies D-Folic Acid (CAS 65165-91-5), a certified reference material (molecular formula C19H19N7O6, MW 441.40 g/mol) for analytical method development and quality control.
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), D-Folic Acid 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 | C19H19N7O6 |
| Molecular Weight | 441.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >90% |
| Storage | Store in a cool place (≤25°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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 7 |
Related D Standards
- DL-Folic Acid (CAS 65165-92-6)
- Folic Acid EP Impurity G (CAS 2734707-85-6)
- Folic Acid EP Impurity C (CAS 47707-78-8)
- Folic Acid Impurity 48 (CAS CATO-C4X-139548)
- Folic Acid (CAS 59-30-3)
- Folic Acid Impurity 65 (CAS 25663-25-6)
- Folic Acid Impurity 53 (CAS CATO-C4X-139553)
- Folic Acid Impurity 14 (CAS 4033-27-6)
Recommended Standards
- N-(2-(3-(4-Fluorophenyl)-6-oxopyridazin-1(6H)-yl)ethyl)-3-(trifluoromethyl)benzenesulfonamide (CAS 921553-05-1)
- Fmoc-l-2,4,5-trifluorophenylalanine (CAS 959579-81-8)
- 4-(1-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2,2,2-trifluoroethyl)benzoic acid (CAS 2137931-72-5)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(3-(trifluoromethyl)phenyl)acetic acid (CAS 678991-14-5)
- 2-Amino-3,3,3-trichloropropanoic acid (CAS 26208-20-8)
- 2,3-Difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (CAS 1937236-09-3)
- 1-(p-Tolyl)-1-cyclopentanecarboxylic 1-p-tolylcyclopentanecarboxylic acid 80789-75-9 (CAS 80789-75-9)
- 2,3,3A,4-tetrahydrocycloocta[b]furan-5-carbonitrile (CAS 141946-25-0)
- Butyl(2-phenylpropyl)amine hydrochloride (CAS 855385-45-4)
- 1-((1H-Imidazol-1-yl)methyl)-4-bromo-9H-xanthen-9-one (CAS 331684-13-0)
- 3-(3-Fluorophenyl)propanenitrile (CAS 25468-87-5)
- tert-Butyl N-[2-(methylcarbamoyl)ethyl]carbamate (CAS 154656-94-7)
- trans-3-((Benzo[d][1,3]dioxol-5-yloxy)methyl)-4-(4-fluorophenyl)piperidine hydrochloride (CAS 130855-16-2)
- Semaglutide impurity 64 (CAS CATO-C4X-222664)
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