Diethyl 2,5-di(1H-imidazol-1-yl)terephthalate CAS 1942879-47-1
| CAS No. | 1942879-47-1 |
| Molecular Formula | C18H18N4O4 |
| Molecular Weight | 354.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 354.36 g/mol gives Diethyl 2,5-di(1H-imidazol-1-yl)terephthalate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Diethyl 2,5-di(1H-imidazol-1-yl)terephthalate (CAS 1942879-47-1), molecular formula C18H18N4O4 and molecular weight 354.36 g/mol, is a CATO reference standard with documented purity and traceability.
Diethyl 2,5-di(1H-imidazol-1-yl)terephthalate (C18H18N4O4) contains a flavonoid core, 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), Diethyl 2,5-di(1H-imidazol-1-yl)terephthalate 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 | C18H18N4O4 |
| 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.) | 1996 |
| Nitrogen Atoms | 4 |
Related Diethyl Standards
- Diethyl 2-(4-(benzyloxy)benzylidene)malonate (CAS 53361-40-3)
- Diethyl 2-(5-ethoxycarbonyl-3-nitro-2-pyridyl)propanedioate (CAS 1630906-48-7)
- Diethyl N-[(1S)-1-(phenylmethyl)-2-(1-piperidinyl)ethyl]phosphoramidate (CAS 2417471-78-2)
- Diethyl (2,3,5,6-tetrafluoro-4-(trifluoromethyl)phenyl)phosphonate (CAS 70446-76-3)
- Diethyl (4-iodobenzyl)phosphonate (CAS 173443-43-1)
- Diethyl (3-iodobenzyl)phosphonate (CAS 261966-88-5)
- 1,3-Diethyl 2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-2-methylpropanedioate (CAS 400075-21-0)
- Diethyl (R)-(2-(4-benzyl-2-oxooxazolidin-3-yl)-2-oxoethyl)phosphonate (CAS 204587-88-2)
Recommended Standards
- 2-(2-Nitrophenyl)-4,6-diphenyl-1,3,5-triazine (CAS 1596320-69-2)
- (2S)-2-[(4,7-Dimethoxy-1H-indol-2-yl)formamido]-2-phenylacetic acid (CAS 956951-92-1)
- 3-Carbamoyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid (CAS 157355-73-2)
- (3R)-4-Amino-3-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4-oxobutanoic acid (CAS 200335-41-7)
- (E)-N-(4-((2-hydroxy-3-methoxybenzylidene)amino)phenyl)acetamide (CAS 303760-58-9)
- 4-Amino-8-isopropylquinoline-3-carboxylic acid (CAS 1279218-90-4)
- 2,9-dichlorobenzofuro[3,2-d]pyrimidine (CAS 2772540-55-1)
- 3-(Pentafluorosulfur)benzoyl chloride (CAS 401892-81-7)
- (5-Bromo-2-fluoropyridin-3-yl)methanamine hydrochloride (CAS 1432754-51-2)
- 4,4,4-Trifluoro-1-(4-hydroxyphenyl)butane-1,3-dione (CAS 57965-22-7)
- 3,4,6,8-Tetrahydroxy-1,2,5-tris(3-methylbut-2-en-1-yl)-9H-xanthen-9-one (CAS 659747-28-1)
- (1S,3S,4R)-Entecavir (CAS CATO-C4X-10775)
- Adenosine 5’-O-(2-Thiodiphosphate) Trilithium Salt (CAS 73536-95-5)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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