1-Methylpyrrole
Synonym(s):N-Methylpyrrole;1-Methylpyrrole;N-Methylpyrrole
- CAS NO.：96-54-8
- Empirical Formula: C5H7N
- Molecular Weight: 81.12
- MDL number: MFCD00005345
- EINECS: 202-513-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:20:23
What is 1-Methylpyrrole?
Chemical properties
clear yellow to light brown liquid
The Uses of 1-Methylpyrrole
Organic synthesis.
The Uses of 1-Methylpyrrole
1-Methylpyrrole, can be used as organic synthetic materials, widely used in medicine. It is also used as a pharmaceutical intermediate.
Definition
ChEBI: 1-Methylpyrrole is a member of pyrroles.
Hazard
Flammable, dangerous fire risk.
Purification Methods
Dry N-methylpyrrole with CaSO4, then fractionally distil it from KOH immediately before use. [Beilstein 20 III/IV 2080, 20/5 V 8.]
Properties of 1-Methylpyrrole
| Melting point: | -57 °C (lit.) |
| Boiling point: | 112-113 °C (lit.) |
| Density | 0.914 g/mL at 25 °C (lit.) |
| vapor density | 2.8 (vs air) |
| vapor pressure | 15 mm Hg ( 20.2 °C) |
| refractive index | n |
| Flash point: | 59 °F |
| storage temp. | Store below +30°C. |
| solubility | 13g/l |
| form | liquid |
| pka | -2.80±0.70(Predicted) |
| color | yellow-brown |
| PH | 10.4 (10g/l, H2O, 10℃) |
| Odor | at 1.00 % in dipropylene glycol. powerful smoky woody herbal |
| explosive limit | 1.4-8.5%(V) |
| Water Solubility | Soluble in organic solvents such as alcohol and so on, but insoluble in water. |
| BRN | 104181 |
| CAS DataBase Reference | 96-54-8(CAS DataBase Reference) |
| NIST Chemistry Reference | 1H-Pyrrole, 1-methyl-(96-54-8) |
| EPA Substance Registry System | 1H-Pyrrole, 1-methyl- (96-54-8) |
Safety information for 1-Methylpyrrole
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H225:Flammable liquids H302:Acute toxicity,oral H315:Skin corrosion/irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
Computed Descriptors for 1-Methylpyrrole
| InChIKey | OXHNLMTVIGZXSG-UHFFFAOYSA-N |
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