5-Formylcytosine CAS 4425-59-6
| CAS No. | 4425-59-6 |
| Molecular Formula | C5H5N3O2 |
| Molecular Weight | 139.11 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 5-Formylcytosine.
5-Formylcytosine (CAS 4425-59-6), molecular formula C5H5N3O2 and molecular weight 139.11 g/mol, is a CATO reference standard with documented purity and traceability.
5-Formylcytosine (C5H5N3O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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 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), 5-Formylcytosine 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 | C5H5N3O2 |
| Molecular Weight | 139.11 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 5-Formyl-1H-pyrrole-3-carboxylic acid (CAS 946847-30-9)
- 5-Formylfuran-2-carboxamide (CAS 42978-27-8)
- 5-formyl-1H-pyrrole-2-carboxylic acid (CAS 7126-51-4)
- 5-Hydroxy Nicotinic Acid (CAS 27828-71-3)
- 2-Bromo-6-(bromomethyl)-3-chloro-4-(difluoromethyl)pyridine (CAS 1804721-62-7)
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- 5-Bromo-3-(prop-1-en-2-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridine (CAS 1207625-46-4)
- GYKI 52466 (hydrochloride) (CAS 192065-56-8)
- Glu17-Semaglutide (CAS CATO-C4X-2226209)
Why CATO?
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