pyridine
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IUPAC name :pyridine
InChI :InChI=1/C5H5N/c1-2-4-6-5-3-1/h1-5H
InChIKey :JUJWROOIHBZHMG-UHFFFAOYAY
SMILES :C1=CC=NC=C1
cas number :110-86-1
(EINECS) number :203-809-9
eu annex :613-002-00-7
beilstein number :0103233
fema number :2966
coe number :604
fl. number :14.008
molar refractivity :24.34 ± 0.3 cm3
parachor :201.4 ± 4.0 cm3
index of refraction :1.500 ± 0.02
surface tension :35.2 ± 3.0 dyne/cm
density :0.956 ± 0.06 g/cm3
polarizability :9.65 ± 0.5 10-24cm3
XlogP : 0.80
molecular weight : 79.0999000
formula :C5 H5 N
BioActivity Analysis :17389599
NMR Predictor :Predict
 
 
export tariff code :2933.39.9050
fda reg :172.515
177.1580
177.1585

Suppliers :
Berje :Pyridine
Penta :pyridine anhydrous
(water <50 ppm)
Penta :pyridine
Penta :pyridine
(water 0.10% max.)
Penta :pyridine
(water 0.05% max)
Sigma-Aldrich-SAFC :Pyridine
≥99%, Kosher
Odor:  sour; fishy

organoleptics :
odor type :fishy
odor strength :very high ,
recommend smelling in a 0.01 % solution or less
odor description :
at 0.01 % in propylene glycol.  
sickening sour putrid fishy amine

properties :
appearence :colorless clear liquid
assay : 99.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.97800 @ 25.00 °C.
refractive index :1.51000 @ 20.00 °C.
melting point : -42.00 to -41.00 °C. @ 760.00 mm Hg
boiling point : 115.00 to 116.00 °C. @ 760.00 mm Hg
boiling point : 43.00 to 44.00 °C. @ 50.00 mm Hg
vapor pressure :20.80000 mm/Hg @ 25.00 °C.
vapor density :2.72 ( Air = 1 )
flash point : 68.00  °F.  TCC  ( 20.00 °C. )
logP (o/w) : 0.65

safety :
most important hazard(s) :Xn - Harmful.
  R 11 - Highly flammable.
R 20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
S 01/02 - Keep locked up and out of the reach of children.
S 07/09 - Keep container tightly closed and in well-ventilated place.
S 16 - Keep away from sources of ignition - No Smoking.
S 20/21 - When using do not eat, drink or smoke.
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 Toxicity(LD50) :
  Oral-Rat    891.00  mg/kg
BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 14-4/1970

intravenous-Rat    360.00  mg/kg
Pharmacological Research Communications. Vol. 5, Pg. 341, 1973.

Intraperitoneal-Rat    866.00  mg/kg
National Technical Information Service. Vol. PB195-158

Oral-Mouse    1500.00  mg/kg
Pharmacological Research Communications. Vol. 5, Pg. 341, 1973.

intravenous-Mouse    420.00  mg/kg
Pharmacological Research Communications. Vol. 5, Pg. 341, 1973.

Intraperitoneal-Mouse    950.00  mg/kg
Progress in Biochemical Pharmacology. Vol. 1, Pg. 542, 1965.

Oral-Guineapig    4000.00  mg/kg
Journal of Physiology. Vol. 17, Pg. 272, 1894.

Dermal Toxicity(LD50) :
  Skin-Rabbit  1121.00  mg/kg
BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 14-4/1970

Subcutaneous-Rat  866.00  mg/kg
Clinical Toxicology. Vol. 4, Pg. 185, 1971.

Subcutaneous-Mouse  1250.00  mg/kg
Pharmacological Research Communications. Vol. 5, Pg. 341, 1973.

Skin-Guineapig  1000.00  mg/kg

Inhalation Toxicity(LC50) :
  Inhalation-Rat  28500.00  mg/m3/1H
  BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 14-4/1970,

 

safety in use :
 
recommendation for pyridine usage levels up to :
 not for fragrance use.

safety references :
EPI System :view
EPA-Iris :IRIS
NIOSH International Chemical Safety Cards :search
NIOSH Pocket Guide :search
NLM Hazardous Substances Data Bank :search
Chemical Carcinogenesis Research Information System :Search
AIDS Citations :Search
Cancer Citations :Search
Toxicology Citations :Search
Carcinogenic Potency Database :Search
EPA GENetic TOXicology :Search
Env. Mutagen Info. Center :Search
NLM Developmental and Reproductive Toxicity :Search
National Toxicology Program :Search
Canada Domestic Sub. List :Yes
EPA Chem. Sub. Inventory : Yes
WISER :UN 1282
 
WGK Germany :2
 
 
 
 pyridine
(EINECS) number :203-809-9
RTECS :110-86-1
chemidplus :000110861
EPA/NOAA CAMEO :hazardous materials
EPA Substance Registry Services :110-86-1
dtp/nci :406123

references :
 pyridine
fl. number :14.008
NIST Chemistry WebBook :110861
pubchem :151201

other :
VCF-Online: VCF Volatile Compounds in Food
synonyms :
 azine
azabenzene

soluble in :
 alcohol
 water, 1000000 mg/L @ 25C

(odor and/or flavor) blends with :
 acetic acid
2-acetyl-1-pyrroline
1-amino-2-propanol
isoamyl 3-(2-furan) propionate
 amyl amine
para-anisic acid
 butyl amine
(±)-sec-butyl amine
isobutyl amine
isobutyric acid
 clove bud concrete
 decanoic acid
4,5-dimethyl thiazole
 ethyl 3-mercaptobutyrate
 ethyl amine
2-ethyl butyric acid
 fish thiol
 heptanoic acid
 hexanoic acid
 hexyl amine
2-methyl butyl amine
2-methyl piperidine
S-(methyl thio) butyrate
2-methyl valeric acid
(E)-2-octenoic acid
3-penten-2-one
isopentylidene isopentyl amine
 phenethyl amine
 phenoxyacetic acid
 propionyl pyrroline 1% in vegatable oil triglyceride
isopropyl amine
 propylene glycol dibenzoate
 pyruvic acid
 terpinyl butyrate
 thiamine hydrochloride
 triethyl amine
 trimethyl amine
(R)-N,N,alpha-trimethyl benzyl amine
2,4,5-trimethyl oxazole
 tripropyl amine
isovaleraldehyde propylene glycol acetal
 valerian absolute
 valeric acid
isovaleric acid

(odor and/or flavor) used in :
 coffee
 tobacco tabac tabaco

natural occurrence in :
coffee
data pagelavender oil spike spain @ 0.005%
data pagemangrove bark red oil cuba @ trace%
tobacco



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