4-Picoline

Modify Date: 2025-08-22 13:05:30

4-Picoline Structure
4-Picoline structure
Common Name 4-Picoline
CAS Number 108-89-4 Molecular Weight 93.127
Density 0.9±0.1 g/cm3 Boiling Point 144.2±9.0 °C at 760 mmHg
Molecular Formula C6H7N Melting Point 2.4 °C(lit.)
MSDS Chinese USA Flash Point 56.7±0.0 °C
Symbol GHS02 GHS06
GHS02, GHS06
Signal Word Danger

 Names

Name 4-methylpyridine
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.9±0.1 g/cm3
Boiling Point 144.2±9.0 °C at 760 mmHg
Melting Point 2.4 °C(lit.)
Molecular Formula C6H7N
Molecular Weight 93.127
Flash Point 56.7±0.0 °C
Exact Mass 93.057846
PSA 12.89000
LogP 1.19
Vapour density 3.2 (vs air)
Vapour Pressure 6.5±0.3 mmHg at 25°C
Index of Refraction 1.501
Water Solubility soluble

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UT5425000
CHEMICAL NAME :
Pyridine, 4-methyl-
CAS REGISTRY NUMBER :
108-89-4
LAST UPDATED :
199806
DATA ITEMS CITED :
16
MOLECULAR FORMULA :
C6-H7-N
MOLECULAR WEIGHT :
93.14
WISWESSER LINE NOTATION :
T6NJ D1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Open irritation test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 2/21/1958
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,841,1986 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
440 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 57(9-10),64,1992
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1000 ppm/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AMIHBC AMA Archives of Industrial Hygiene and Occupational Medicine. (Chicago, IL) V.2-10, 1950-54. For publisher information, see AEHLAU. Volume(issue)/page/year: 10,61,1954
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
163 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
REFERENCE :
FAATDF Fundamental and Applied Toxicology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1981- Volume(issue)/page/year: 5,920,1985
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
350 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 57(9-10),64,1992
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
4 gm/m3
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 57(9-10),64,1992
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
335 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TOXIA6 Toxicon. (Pergamon Press Ltd., Headington Hill Hall, Oxford OX3 OBW, UK) V.1- 1962- Volume(issue)/page/year: 23,815,1985
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
270 uL/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AMIHBC AMA Archives of Industrial Hygiene and Occupational Medicine. (Chicago, IL) V.2-10, 1950-54. For publisher information, see AEHLAU. Volume(issue)/page/year: 10,61,1954
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,841,1986
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Bird - wild bird species
DOSE/DURATION :
422 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AECTCV Archives of Environmental Contamination and Toxicology. (Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ 070944) V.1- 1973- Volume(issue)/page/year: 12,355,1983 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X7969 No. of Facilities: 55 (estimated) No. of Industries: 3 No. of Occupations: 7 No. of Employees: 9556 (estimated) No. of Female Employees: 1119 (estimated)

 Safety Information

Symbol GHS02 GHS06
GHS02, GHS06
Signal Word Danger
Hazard Statements H226-H302 + H332-H311-H315-H319-H335
Precautionary Statements P261-P280-P305 + P351 + P338-P312
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes T:Toxic;
Risk Phrases R10;R20/22;R24;R36/37/38
Safety Phrases S26-S36-S45
RIDADR UN 1992 3/PG 3
WGK Germany 1
RTECS UT5425000
Packaging Group III
Hazard Class 3
HS Code 29333955

 Synthetic Route

 Customs

HS Code 2933399090
Summary 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Articles3

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Magnesium hydrides and the dearomatisation of pyridine and quinoline derivatives.

Dalton Trans. 40(46) , 12500-9, (2011)

Reactions of the β-diketiminato n-butyl magnesium complex, [HC{(Me)CN(2,6-(i)Pr(2)C(6)H(3))}(2)Mg(n)Bu], with a range of substituted pyridines and fused-ring quinolines in the presence of PhSiH(3) has...

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 Synonyms

4-Mepy
picoline-4
p-Picoline
GAMMAP
4-Methylazine
4''-methylpyridine
p-methylpyridine
γ-Picoline
4-methylPyr
Pyridine, 4-methyl-
4-Methyl-pyridine
4-Picoline
EINECS 203-626-4
MFCD00006440
4-methyl pyridine
g-picoline
4-Methylpyridine
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