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Substance Name: Pyridine
RN: 110-86-1
UNII: NH9L3PP67S
InChIKey: JUJWROOIHBZHMG-UHFFFAOYSA-N

Molecular Formula

  • C5-H5-N

Molecular Weight

  • 79.1015
 

Classification Codes

Classification Codes

  • Mutation Data
  • Skin / Eye Irritant
  • Tumor Data

Superlist Classification Codes

  • Overall Carcinogenic Evaluation: Group 3
  • Reportable Quantity (RQ) = 1000 lb
  • TWA (5 ppm)
  • TWA 5 ppm (15 mg/m3)

Names and Synonyms

Name of Substance

  • Pyridine

Synonyms

  • AI3-01240
  • Azabenzene
  • Azine
  • Caswell No. 717
  • CCRIS 2926
  • CP 32
  • EC 203-809-9
  • EINECS 203-809-9
  • EPA Pesticide Chemical Code 069202
  • FEMA No. 2966
  • FEMA Number 2966
  • HSDB 118
  • NCI-C55301
  • NSC 406123
  • Piridina
  • Piridina [Italian]
  • Pirydyna
  • Pirydyna [Polish]
  • Pyridin
  • Pyridin [German]
  • Pyridine
  • RCRA waste number U196
  • UNII-NH9L3PP67S

Systematic Name

  • Pyridine

Superlist Names

  • Pyridine
  • Pyridine [UN1282] [Flammable liquid]
  • RCRA waste no. U196
  • UN1282

Registry Numbers

CAS Registry Number

  • 110-86-1

FDA UNII

  • NH9L3PP67S

Other Registry Numbers

  • 152758-95-7
  • 163392-20-9
  • 45410-39-7
  • 62301-32-0
  • 6999-00-4
  • 733733-47-6
  • 82005-06-9
  • 85404-19-9
  • 85404-20-2
  • 857961-06-9

Related Registry Numbers

  • 15598-34-2 (perchlorate)
  • 18820-82-1 (hydrobromide)
  • 32001-55-1 (hydrofluoride)
  • 543-54-4 (monosulfate)
  • 628-13-7 (hydrochloride)

System Generated Number

  • 0000110861

Structure Descriptors

InChI

1S/C5H5N/c1-2-4-6-5-3-1/h1-5H

InChIKey

JUJWROOIHBZHMG-UHFFFAOYSA-N

Smiles

c1ccncc1

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LD50 intravenous 880mg/kg (880mg/kg) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION

VASCULAR: BP LOWERING NOT CHARACTERIZED IN AUTONOMIC SECTION

CARDIAC: CHANGE IN RATE
Toxicology. Vol. 4, Pg. 165, 1975.
frog LDLo parenteral 870mg/kg (870mg/kg)   "Structure et Activite Pharmacodyanmique des Medicaments du Systeme Nerveux Vegetatif," Bovet, D., and F. Bovet-Nitti, New York, S. Karger, 1948Vol. -, Pg. 695, 1948.
guinea pig LD50 skin 1gm/kg (1000mg/kg)   "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 839, 1986.
guinea pig LDLo intraperitoneal 870mg/kg (870mg/kg) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES

BEHAVIORAL: TREMOR

BEHAVIORAL: GENERAL ANESTHETIC
Journal of Physiology. Vol. 17, Pg. 272, 1894.
guinea pig LDLo oral 4gm/kg (4000mg/kg) BEHAVIORAL: GENERAL ANESTHETIC

BEHAVIORAL: TREMOR

LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES
Journal of Physiology. Vol. 17, Pg. 272, 1894.
mammal (species unspecified) LC50 inhalation 10gm/m3 (10000mg/m3)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 32(10), Pg. 25, 1988.
mammal (species unspecified) LD50 oral 1500mg/kg (1500mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 32(10), Pg. 25, 1988.
mouse LD50 intraperitoneal 950mg/kg (950mg/kg)   Progress in Biochemical Pharmacology. Vol. 1, Pg. 542, 1965.
mouse LD50 intravenous 420mg/kg (420mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

LUNGS, THORAX, OR RESPIRATION: DYSPNEA

BEHAVIORAL: SLEEP
Pharmacological Research Communications. Vol. 5, Pg. 341, 1973.
mouse LD50 oral 1500mg/kg (1500mg/kg) BEHAVIORAL: SLEEP

LUNGS, THORAX, OR RESPIRATION: DYSPNEA

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
Pharmacological Research Communications. Vol. 5, Pg. 341, 1973.
mouse LD50 subcutaneous 1250mg/kg (1250mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: SLEEP

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
Pharmacological Research Communications. Vol. 5, Pg. 341, 1973.
rabbit LD50 skin 1121mg/kg (1121mg/kg) GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS

BEHAVIORAL: ATAXIA

LIVER: OTHER CHANGES
BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 14-4/1970,
rabbit LDLo intraperitoneal 15mg/kg (15mg/kg) BEHAVIORAL: GENERAL ANESTHETIC

PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE)
Journal of Infectious Diseases. Vol. 42, Pg. 473, 1928.
rabbit LDLo subcutaneous 800mg/kg (800mg/kg)   "Structure et Activite Pharmacodyanmique des Medicaments du Systeme Nerveux Vegetatif," Bovet, D., and F. Bovet-Nitti, New York, S. Karger, 1948Vol. -, Pg. 695, 1948.
rat LC50 inhalation 28500mg/m3/1H (28500mg/m3) LUNGS, THORAX, OR RESPIRATION: DYSPNEA

SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 14-4/1970,
rat LD50 intraperitoneal 866mg/kg (866mg/kg)   National Technical Information Service. Vol. PB195-158,
rat LD50 intravenous 360mg/kg (360mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: SLEEP

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
Pharmacological Research Communications. Vol. 5, Pg. 341, 1973.
rat LD50 oral 891mg/kg (891mg/kg) SENSE ORGANS AND SPECIAL SENSES: PTOSIS: EYE

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: COMA
BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 14-4/1970,
rat LD50 subcutaneous 866mg/kg (866mg/kg)   Clinical Toxicology. Vol. 4, Pg. 185, 1971.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -4.16E+01 deg C   EXP
Boiling Point 115.2 deg C   EXP
pKa Dissociation Constant 5.229 (none)   EXP
log P (octanol-water) 0.65 (none)   EXP
Water Solubility 1.00E+06 mg/L 25 EXP
Vapor Pressure 20.8 mm Hg 25 EXP
Henry's Law Constant 1.10E-05 atm-m3/mole 25 EXP
Atmospheric OH Rate Constant 3.70E-13 cm3/molecule-sec 25 EXP

Physical property data is provided to ChemIDplus by SRC, Inc.