2,3,4,5-Tetramethyl-1H-pyrrole CAS 1003-90-3
| CAS No. | 1003-90-3 |
| Molecular Formula | C14H22O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, a hydroxyl group, an ether linkage, 2,3,4,5-Tetramethyl-1H-pyrrole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 280.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
2,3,4,5-Tetramethyl-1H-pyrrole (CAS 1003-90-3) is a high-purity analytical reference standard with the molecular formula C14H22OC2H4OCH2O and a molecular weight of 280.41 g/mol.
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), 2,3,4,5-Tetramethyl-1H-pyrrole 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 | C14H22O C2H4O CH2O |
| Molecular Weight | 280.41 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Tetramethyl Standards
- 3-[4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]propan-1-ol (CAS 1000802-50-5)
- 3,3',4,4'-Tetramethyl-2,2'-bithiophene (CAS 100118-76-1)
- 4,4,5,5-Tetramethyl-2-(5-methylbenzo[b]thiophen-2-yl)-1,3,2-dioxaborolane (CAS 1001200-61-8)
- 2-(1,1,5,5-Tetramethyl-1,3,4,5,6,8a-hexahydro-2H-2,4a-methanonaphthalen-8-yl)propan-1-ol (CAS 1001252-30-7)
- 2,3,6,7-Tetramethyl-1H-indole-4,5-dione (CAS 100192-23-2)
- 3-Methyl-1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)butan-1-amine 2,2,2-trifluoroacetate (CAS 100208-05-7)
- 2-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoindolin-1-one (CAS 1002309-19-4)
- 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]thiazole (CAS 1002309-47-8)
Recommended Standards
- 2,6-Bis[(4S,5S)-4,5-dihydro-4,5-diphenyl-1H-imidazol-2-yl]pyridine (CAS 1221973-02-9)
- (R)-3-[(2-Methyl-4-benzyl)piperazinyl]propyl Alchol (CAS 1134924-67-6)
- 3-Butoxy-N-[2-(4-ethylphenoxy)propyl]aniline (CAS 1040683-41-7)
- 2-(2-Oxo-3-phenylquinoxalin-1(2H)-yl)acetic acid (CAS 727671-54-7)
- Abrocitinib Impurity 42 (CAS CATO-C4X-288442)
- 3-Hydrazinyl-2-nitropyridine (CAS 57115-43-2)
- Methyl 4-((1-methyl-4-nitro-1H-pyrazol-3-yl)oxy)benzoate (CAS 1443278-98-5)
- 4-Bromo-4,4-difluorobutyricacid (CAS 147345-36-6)
- 2-Methyl-1-propyl-1H-benzo[d]imidazol-5-amine dihydrochloride (CAS 1255718-01-4)
- Semaglutide impurity 203 (CAS CATO-C4X-2226203)
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