2-methyl-1-pyrroline 3,4-Dihydro-5-methyl-2H-pyrrole 5-methyl-3,4-dihydro-2H-pyrrole 872-32-2 CHEBI:78856 CAS 872-32-2
| CAS No. | 872-32-2 |
| Molecular Formula | C5H9N |
| Molecular Weight | 83.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-methyl-1-pyrroline 3,4-Dihydro-5-methyl-2H-pyrrole 5-methyl-3,4-dihydro-2H-pyrrole 872-32-2 CHEBI:78856 (CAS 872-32-2) is a high-purity analytical reference standard with the molecular formula C5H9N and a molecular weight of 83.13 g/mol.
The molecular framework of 2-methyl-1-pyrroline 3,4-Dihydro-5-methyl-2H-pyrrole 5-methyl-3,4-dihydro-2H-pyrrole 872-32-2 CHEBI:78856 (C5H9N) is characterized by a nitrile group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H9N |
| Molecular Weight | 83.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related methyl Standards
- 3-Pyrroline (CAS 109-96-6)
- 2-Acetyl-1-pyrroline, ~10% w/w in Toluene (CAS 85213-22-5)
- DL-1-Pyrroline-5-carboxylic acid (CAS 2906-39-0)
- Pyrroline-5-carboxylate (CAS 2139-03-9)
- 2-Acetyl-1-pyrroline-13C2 85% (10% w/w in Toluene) (CAS 1246819-73-7)
- 2-Acetyl-1-pyrroline 13C5 in DCM (CAS 1449323-18-5)
- 1-Benzyl-3-pyrroline (CAS 6913-92-4)
- 3-Pyrroline Hydrochloride (CAS 63468-63-3)
Recommended Standards
- 7223-38-3 1-Dimethylamino-2-propyne MFCD00008575 N,N-Dimethyl-2-propynylamine N,N-Dimethylpropargylamine 3-Dimethylamino-1-propyne (CAS 7223-38-3)
- 2,2-Dimethylpropionitrile (CAS 630-18-2)
- 7188-38-7 tert-Butyl isocyanide 2-Methylpropyl isocyanide Propane, 2-isocyano-2-methyl- (9CI) Propane, 2-isocyano-2-methyl- (VAN) (9CI) tert-Butylisonitrile t-Butylisonitrile EINECS 230-553-5 2-Isocyano-2-methylpropane 2-Methyl-2-isocyanopropane NSC 141687 TBIN (CAS 7188-38-7)
- Sodium Valproate Impurity 7 (CAS 110-59-8)
- 3,5-Dimethyl-1-(2-methylpropyl)-1h-pyrazole-4-sulfonyl chloride (CAS 1156602-97-9)
- Tert-butyl 8-amino-1-(hydroxymethyl)-5-azaspiro[2.5]Octane-5-carboxylate (CAS 2387599-32-6)
- (4-(1-Methylpyrrolidin-2-yl)phenyl)methanol (CAS 2144443-93-4)
- (S)-2-Amino-5-(hydrazinecarboximidamido)pentanoic acid hydrochloride (CAS 1031799-40-2)
- 2-Amino-3-(4-bromo-1h-pyrazol-1-yl)-2-cyclopropylpropanamide (CAS 1343943-85-0)
- Ethyl 5-chloro-4-formyl-1-isopropyl-1H-pyrazole-3-carboxylate (CAS 478620-61-0)
- 1-N-ethyl-5-fluorobenzene-1,2-diamine (CAS 1081777-81-2)
- Pidotimod Impurity 32 (CAS 21282-08-6)
- 3-Butoxy-4-methoxybenzenethiol (CAS 1379317-19-7)
- Semaglutide impurity 69 (CAS CATO-C4X-222669)
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