Pyrrolidine
CAS 123-75-1
EC 204-648-7
Formula C4H9N
MW 71.12 g/mol
Flavors & Fragrances Food & NutritionPersonal Care & Cosmetics Flavoring & AcidulantSurface Modification & Wetting
Description
Pyrrolidine (CAS 123-75-1, EC 204-648-7) is a saturated five-membered nitrogen-containing ring compound, also known as azolidine and registered under FEMA 2523. It carries no E-code designation. Abbreviated as PRL or PRD in technical literature, it is classified within the secondary amine family.
In food and flavour applications, pyrrolidine acts as a precursor in Maillard-type reactions, contributing characteristic roasted and bread-like notes at controlled concentrations. In personal care formulations, it functions as a surface-active conditioning agent, modifying the charge profile of hair and skin substrates to improve feel and manageability.
Pyrrolidine is supplied as a technical-grade liquid compliant with REACH registration requirements. Procurement quantities are available in drums and IBC formats. Buyers should confirm purity specifications against FCC or equivalent food-grade standards depending on the intended application and regional regulatory framework.
In food and flavour applications, pyrrolidine acts as a precursor in Maillard-type reactions, contributing characteristic roasted and bread-like notes at controlled concentrations. In personal care formulations, it functions as a surface-active conditioning agent, modifying the charge profile of hair and skin substrates to improve feel and manageability.
Pyrrolidine is supplied as a technical-grade liquid compliant with REACH registration requirements. Procurement quantities are available in drums and IBC formats. Buyers should confirm purity specifications against FCC or equivalent food-grade standards depending on the intended application and regional regulatory framework.
Physical Properties
| Melting Point | -63 °C |
| Boiling Point | 86.71 °C |
| Density | 0.8520 g/cm³ @ Temp: 22.5 °C |
| Flash Point | 37 °F |
| Appearance | colourless to pale yellow liquid with a penetrating |
| Color | Colorless to Almost colorless |
| Odor | at 0.10 % in propylene glycol. ammoniacal animal egg amine |
| Form | Liquid |
| Water Solubility | Miscible with alcohol, ether, chloroform and water. |
| Vapor Pressure | 128 mm Hg ( 39 °C) |
| Refractive Index | n 20/D 1.443(lit.) |
| pH | 12.9 (100g/l, H2O, 20℃) |
| Log P | 0.22 at 25℃ |
Safety & Handling (Learn More)
Danger GHS02 GHS05 GHS07 GHS06 GHS08
H
H225H301H302H314H318H330H332H370
P
P210P233P240P241P242P243P260P261P264P270P271P280P284P316P317P320P321P330P363P405P501P264+P265P301+P316P301+P317P304+P340P308+P316P370+P378P403+P233P403+P235P301+P330+P331P302+P361+P354P303+P361+P353P305+P354+P338
Trade & Regulatory
| HS Code | 29339900 |
| UN Number | 1922 |
| ADR Class | 3 |
| Packing Group | II |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 2 |
Other Names
azolidinetetrahydropyrroletetramethyleniminePRDPRLProlamine
Related Products
Raw Materials
Derivatives
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