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ChemicalBook >> CAS DataBase List >>3,4-dihydro-2H-pyrrole

3,4-dihydro-2H-pyrrole

3,4-dihydro-2H-pyrrole Structure
3,4-dihydro-2H-pyrrole structure
CAS No.
5724-81-2
Chemical Name:
3,4-dihydro-2H-pyrrole
Synonyms
1-PYRROLINE;Einecs 227-230-6;delta(1)-pyrroline;3,4-dihydro-2H-pyrrole;2H-Pyrrole, 3,4-dihydro-
CBNumber:
CB9940642
Molecular Formula:
C4H7N
Molecular Weight:
69.11
MDL Number:
MFCD11041079
MOL File:
5724-81-2.mol
Last updated:2026-05-28 05:20:23
Product description Number Pack Size Price
1-PYRROLINE 95.00% FFG0001152 5MG $505.21
Request For Quotation

3,4-dihydro-2H-pyrrole Properties

Melting point 96-102 °C
Boiling point 113.7±13.0 °C(Predicted)
Density 0.95±0.1 g/cm3(Predicted)
FLAVIS Number 14.167 | 1-Pyrroline
FEMA 3898 | 1-PYRROLINE
pka 7.81±0.20(Predicted)
Odor at 0.10 % in propylene glycol. ammoniacal shrimp seafood
Odor Type ammoniacal
JECFA Number 1603
Henry's Law Constant 1.6×100 mol/(m3Pa) at 25℃, Amoore and Buttery (1978)
LogP -0.78
Substances Added to Food (formerly EAFUS) 1-PYRROLINE
FDA UNII 2SK2I7766O

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Exclamation Mark (GHS07)
GHS02,GHS07
Signal word  Danger
Hazard statements  H225-H302-H315-H319-H335
Precautionary statements  P210-P280-P305+P351+P338

3,4-dihydro-2H-pyrrole price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
American Custom Chemicals Corporation FFG0001152 1-PYRROLINE 95.00% 5724-81-2 5MG $505.21 2021-12-16 Buy
Product number Packaging Price Buy
FFG0001152 5MG $505.21 Buy

3,4-dihydro-2H-pyrrole Chemical Properties,Uses,Production

Chemical Properties

1-Pyrroline has a spermous odor

Occurrence

Reported present in clam and squid.

Uses

It is used in the Biological study and evaluation of aliphatic and aromatic amines and amides as flavoring materials.

Preparation

By acid hydrolysis of 4-aminobutyraldehyde diethyl acetal.

Definition

ChEBI: 1-pyrroline is a pyrroline and an imine. It is a conjugate base of a 1-pyrrolinium.

Aroma threshold values

2.3 to 22 ppb

3,4-dihydro-2H-pyrrole Preparation Products And Raw materials

Raw materials

Pyridazine, 1,4,5,6-tetrahydro- (R)-1-(3-Bromophenyl)ethylamine 1-AMINOPYRROLIDINE 1,4-DIAMINOBUTANE 3'-Bromoacetophenone

Preparation Products

Pyrrolidine

3,4-dihydro-2H-pyrrole Suppliers

Global( 7)Suppliers
Supplier Tel Email Country ProdList Advantage
Finetech Industry Limited 027-87465837 19945049750 sales@finetechnology-ind.com China 9345 58
Shandong Boluoda Biological Technology Co., Ltd. 0531-68659041 2310993908@qq.com China 2979 58
Hubei Xinyang Medical Technology Co., Ltd 15347293736 2853117764@yongstandards.com China 9988 58
Shaanxi Dideu Newmaterial Co., Ltd. 029-63373950 17392216152 1050@dideu.com China 9998 58
Hubei Rhema Reference Materials Technology Co., Ltd. 15787879035 15787875101 ydw9035@rmastandards.com China 9909 58
Supplier Advantage
Finetech Industry Limited 58
Shandong Boluoda Biological Technology Co., Ltd. 58
Hubei Xinyang Medical Technology Co., Ltd 58
Shaanxi Dideu Newmaterial Co., Ltd. 58
Hubei Rhema Reference Materials Technology Co., Ltd. 58
3,4-dihydro-2H-pyrrole delta(1)-pyrroline 2H-Pyrrole, 3,4-dihydro- Einecs 227-230-6 1-PYRROLINE 5724-81-2