2-Aminopyridine

Overview IFRA Request a quote

  • Identifiers

    CAS number
    504-29-0

    Molecular formula
    C5H6N2

    SMILES
    C1=CC=NC(=C1)N

    Safety labels

    Acute Toxic
    Acute Toxic

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    roasted 52.0%
    nutty 51.31%
    fishy 49.66%
    meaty 47.62%
    burnt 45.86%
    animal 41.41%
    musty 39.49%
    coffee 34.09%
    smoky 32.24%
    cocoa 30.72%

    Scent© AI

  • Properties

    XLogP3-AA
    0.5 Well soluble in MMB, TEC, IAA

    Molecular weight
    94.11 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Melting point expt.

    • 138 to 140 °F (NTP, 1992)
    • 58.1 °C
    • 58 °C
    • 137 °F

    Boiling point

    • 399 to 410 °F at 760 mmHg (NTP, 1992)
    • 210.6 °C
    • Boiling point: 104-106 °C @ 20 mm Hg
    • 211 °C
    • 411 °F

    Flash point expt.

    • 198 °F (NTP, 1992)
    • 198 ° F
    • 68 °C, 154 °F (closed cup)
    • 68 °C c.c.
    • 198 °F
    • 154 °F

    Solubility expt.

    • 10 to 50 mg/mL at 66 °F (NTP, 1992)
    • Soluble in alcohol, benzene, ether, and hot petrol ether
    • >100 g/100 g water @ 20 °C
    • Soluble in ethanol, ethyl ether, and acetone
    • Water solubility: >100g/100mL at 20 °C
    • Solubility in water: very good
    • >100%

  • Synonyms

    • 2-AMINOPYRIDINE
    • 504-29-0
    • pyridin-2-amine
    • 2-Pyridinamine
    • 2-Pyridylamine
    • Pyridinamine
    • Aminopyridine
    • o-Aminopyridine
    • 2-aminopyridin
    • 2-Aminopryidine
    • Pyridine, 2-amino-
    • Amino-2 pyridine
    • 1,2-Dihydro-2-iminopyridine
    • 2-Pyridinylnitrene
    • 26445-05-6
    • Pyridin-2-ylamine
    • .alpha.-Aminopyridine
    • NSC 431
    • 2-pyridinylamine
    • .beta.-Pyridylamine
    • pyridin-2-yl-amine
    • .alpha.-Pyridinamine
    • .alpha.-Pyridylamine
    • MFCD00006312
    • WSX981HEWU
    • CHEMBL21619
    • DTXSID0024505
    • NSC-431
    • 2-amino pyridine
    • alpha-Pyridinamine
    • alpha-Pyridylamine
    • alpha-Aminopyridine
    • 24843-39-8
    • Pyridin-2-amine (2-Pyridylamine)
    • Pyridine, amino-
    • CCRIS 4747
    • HSDB 2068
    • EINECS 207-988-4
    • UNII-WSX981HEWU
    • aminopyridin
    • iminopyridine
    • pyridineamine
    • pyridinylamine
    • Aminopyridines
    • amino pyridine
    • amino-pyridine
    • Pyridyl amine
    • pyridyl nitrogen
    • AI3-15287
    • |A-Pyridylamine
    • 2-pyridyl amine
    • 2-amino-pyridine
    • 2-aminopyr-idine
    • pyridine-2-amine
    • pyridine-2-ylamine
    • aminopyridine, 2-
    • 2-Aminopyridine, 99%
    • EC 207-988-4
    • 2-Aminopyridine, >=99%
    • BIDD:GT0578
    • DTXCID404505
    • NSC431
    • 2-AMINOPYRIDINE [HSDB]
    • JGQBNAFULRKENS-UHFFFAOYSA-N
    • .ALPHA.-AMINOPYRIDINE [MI]
    • BCP22964
    • STR00201
    • Tox21_200880
    • BBL011573
    • BDBM50013712
    • STK286012
    • AKOS000119615
    • CS-W020569
    • FA07684
    • PB47078
    • 2-AP, 2-Pyridinamine, 2-Pyridylamine
    • o-Aminopyridine [UN2671] [Poison]
    • NCGC00248863-01
    • NCGC00258434-01
    • BP-13063
    • CAS-504-29-0
    • PD180348
    • PIROXICAM IMPURITY A [EP IMPURITY]
    • TENOXICAM IMPURITY A [EP IMPURITY]
    • 2-Aminopyridine, purum, >=98.0% (NT)
    • DB-020545
    • A0411
    • NS00010856
    • EN300-19030
    • F90389
    • P17100
    • AC-907/25014346
    • 2-Aminopyridine, PESTANAL(R), analytical standard
    • MEPYRAMINE MALEATE IMPURITY C [EP IMPURITY]
    • Q2393470
    • F1995-0206
    • PIROXICAM RELATED COMPOUND A, REFERENCE STANDARD
    • Z104472278
    • InChI=1/C5H6N2/c6-5-3-1-2-4-7-5/h1-4H,(H2,6,7
    • Mepyramine impurity C, European Pharmacopoeia (EP) Reference Standard
1 4

IFRA Standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction