• Beijing Lys Chemicals
    • Beijing Lys Chemicals Co, LTD.
      From Grams to Tons
      Fine chemical high-tech company which contains R&D, production, and sales.
      BEIJING LYS CHEMICALS CO, LTD, established in 2004, is a fine chemical high-tech company which contains R&D, production, and sales. We mainly engaged in export and technology development of flavor and fragrance materials and pharmaceutical intermediates. We have nearly 500 kinds of products, from grams to tons, exported to USA, Europe, South Asia and etc. And we custom manufacture new products according to customers’ needs, and serve good quality products and service. Our goal is to become a fine chemical enterprise which could provide special products and services.
      Email:Mr. Jia
      Email:Mr. Guo
      Mr. Guo86-10-68483445
      Mr. Guo86-10-68418739
      10426 Pyrrolidine
  • DeLong Chemicals America
    • DeLong Chemicals America
      Custom Manufacturing
      Supplier of aroma chemicals, pharmaceutical and specialty chemical intermediates.
      DeLong Chemicals America, LLC is an extension of Shijiazhuang Lida Chemical Co, Ltd to North America, a leading supplier and manufacturer of aroma chemicals, serving the industries of food, tobacco and perfume, while also providing intermediates, custom synthesis and custom manufacturing for pharmaceutical and specialty chemical industries.
      US Email:Customer Service
      US Email:Sales
      US Voice:(203) 271-9017
      9851 Tetrahydro pyrrole, Kosher
  • M&U International
    • M&U International LLC
      Steady supply & demand
      Meeting customers increasing demands at home as well as abroad.
      M&U dedicates itself to the development and production of new products as well as continuously promoting those new products. We’ve maintained a steady supply&demand relationship with a large number of manufacturers at home and abroad. We’ve developed an extensive network and because of our relationships with these manufacturers, we’re able to provide a stable supply of great quality materials. We’re located in China’s largest communications hub, Shanghai and in the U.S. near one of the largest sea ports on the East Coast. The strategic locations of our facilities ensure convenient, prompt and secure delivery of our products to our customers. We warmly welcome your inquiries, come witness our solemn commitment for yourself.
      US Email:Sales
      Voice:+86-21-32515501 60762991 60762992
      Fax:+86-21-32515502 64204960
      US Voice:908-359-9000
      US Fax:908-359-9002
      H0100 TETRAHYDRO PYRROLE, Kosher
  • Penta International
    • Penta International Corporation
      Chemistry innovation
      At Penta, our products and services help businesses do business better.
      For over 30 years, Penta Manufacturing Company has played a growing role in worldwide chemistry innovations and applications. As an industry leader, Penta continues to pioneer chemistry-based solutions for practically every area of commerce. Our products and expertise have helped fuel technical advances in dozens of commercial applications including flavoring, coloring, fragrances and chemical processes.
      US Email:Technical Services
      US Email:Sales
      US Voice:(973) 740-2300
      US Fax:(973) 740-1839
      16-92700 PYRROLIDINE, Kosher
  • SAFC Global
    • SAFC
      Complete Supply Chain
      The perfect blend of products and services that bring your creativity to life.
      Sigma-Aldrich is a leading Life Science and High Technology company dedicated to providing high-quality, safe and certified flavor ingredients with transparent and easily accessible documentation to customers around the globe. Sigma-Aldrich also provides a suite of analytical tools that allow food analysts to simplify sample preparation, cleanup and analysis steps, while increasing sensitivity to trace ingredients and harmful substances to meet regulations and quality standards.
      US Email:Sales
      US Voice:800-244-1173
      US Fax:800-368-4661
      W352316 pyrrolidine ≥99%
  • Sunaux International
    • Sunaux International
      Buy With Confidence
      We have industry leading processes and procedures to ensure nothing but the most reliable product.
      Sunaux International was founded in 2012 by the owner Mr.John Felton after spending 18 years involved in developing global business in the aromatic chemicals, fragrance and flavour compounds business.
      Email:John Felton
      Email:Stephen Zhou (Sales)
      H0100 Tetrahydro Pyrrole
  • Treatt
    • Treatt PLC
      Full Range of Naturals
      World-leading, independent ingredients supplier to the flavour and fragrance industries.
      We are proud of our heritage in trading essential oils. Our founder Richard Court Treatt's charismatic and personable approach still embodies the spirit of Treatt today.
      US Email:Enquiries
      Voice:+44 (0) 1284 702500
      Fax:+44 (0) 1284 703809
      US Voice:+1 863 668 9500
      US Fax:+1 863 668 3388
  • Home
  • Suppliers
  • Organoleptics
      • Organoleptic Properties
        Odor Type :ammoniacal
        Odor Strength :very high ,
        recommend smelling in a 0.10 % solution or less
        Odor Description:
        at 0.10 % in propylene glycol. 
        ammoniacal animal egg amine
        Odor Description:
        Ammonia, fishy, shellfish and seaweed-like
        Mosciano, Gerard P&F 20, No. 2, 37, (1995)
        Taste Description:
        at 50.00 ppm.  
        Ammonia and fishy amine-like with seaweed and shellfish nuances
        Mosciano, Gerard P&F 20, No. 2, 37, (1995)
  • Properties
      • Physical Properties
        Appearance :colorless clear liquid (est)
        Assay : 95.00 to 100.00 % 
        Food Chemicals Codex Listed :No
        Specific Gravity :0.84700 to 0.85300 @  25.00 °C.
        Pounds per Gallon - (est). : 7.048 to  7.098
        Refractive Index :1.44000 to 1.44600 @  20.00 °C.
        Melting Point : -57.80 °C. @ 760.00 mm Hg
        Boiling Point : 87.00 to  88.00 °C. @ 760.00 mm Hg
        Vapor Pressure :58.582001 mm/Hg @ 25.00 °C. (est)
        Vapor Density :2.45 ( Air = 1 )
        Flash Point : 37.00 °F. TCC ( 2.78 °C. )
        logP (o/w) : 0.460
  • Safety
      • Safety Information
        Most important hazard(s) :T - Toxic.
          R 11 - Highly flammable.
        R 20/22 - Harmful by inhalation and if swallowed.
        R 35 - Causes severe burns.
        S 01/02 - Keep locked up and out of the reach of children.
        S 16 - Keep away from sources of ignition - No Smoking.
        S 20/21 - When using do not eat, drink or smoke.
        S 23 - Do not breath vapour.
        S 24/25 - Avoid contact with skin and eyes.
        S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
        S 28 - After contact with skin, wash immediately with plenty of water.
        S 36/37/39 - Wear suitable clothing, gloves and eye/face protection.
        S 45 - In case of accident or if you feel unwell seek medical advice immediately.
        Oral/Parenteral Toxicity : 
          oral-rat LD50  300 mg/kg
        Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 18(2), Pg. 29, 1974.

        oral-guinea pig LDLo  250 mg/kg
        "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 104, 1982.

        oral-mouse LD50  450 mg/kg
        Bollettino Chimico Farmaceutico. Vol. 103, Pg. 414, 1964.

        intraperitoneal-mouse LD50  420 mg/kg
        Journal of Pharmacology and Experimental Therapeutics. Vol. 88, Pg. 82, 1946.

        oral-rabbit LDLo  250 mg/kg
        "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 104, 1982.

        oral-mammal (species unspecified) LD50  250 mg/kg
        Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 39(4), Pg. 86, 1974.

        intravenous-mouse LD50  56 mg/kg
        U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#06769

        Dermal Toxicity : 
          Not determined
        Inhalation Toxicity : 
          inhalation-mouse LC50 1300 mg/m3/2H
        Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 18(2), Pg. 29, 1974.

  • Safety in Use
      • Safety in Use Information
        Category :flavoring agents
        Maximised Survey-derived Daily Intakes (MSDI-EU) :0.12 (μg/capita/day)
        Maximised Survey-derived Daily Intakes (MSDI-USA) :2.00 (μg/capita/day)
        Threshold of Concern :540 (μg/person/day)
        Structure Class :II
        Recommendation for pyrrolidine fragrance usage levels up to :
         not for fragrance use.
  • Safety References
pyrrolidine (Click)
CAS Number : 123-75-1
ECHA EC Number :204-648-7
Beilstein Number :0102395
MDL :MFCD00005249
FEMA Number :3523
CoE Number :10491
XlogP3 :0.50 (est)
Molecular Weight :71.12273000
Formula :C4 H9 N
BioActivity Summary :listing
NMR Predictor :Predict
Category :flavoring agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information :
Google Scholar : Search Google Books : Search
Google Scholar : with word "volatile"Search Google Scholar : with word "flavor"Search
Google Scholar : with word "odor"SearchPerfumer and Flavorist : Search
Google Patents : Search US Patents : Search
EU Patents : Search IBM Patents : Obtain
Pubchem Patents:Search
PubMed : SearchNCBI : Search
JECFA Food Flavoring :1609  pyrrolidine
Flavis Number :14.064 (Old)
EU SANCO Food Flavourings :14.064  pyrrolidine

FEMA Number :3523  pyrrolidine
click on the picture(s) below to
interact with the 3D model
Picture of molecule
Synonyms :
pyrrole, tetrahydro-
pyrrolidine pure
tetrahydro pyrrole
Soluble in :
 water, 1.00E+06 mg/L @ 20 °C (exp)
Stability :
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