Baclofen

Modify Date: 2025-08-21 10:23:06

Baclofen structure	Common Name	Baclofen
	CAS Number	1134-47-0	Molecular Weight	213.661
	Density	1.3±0.1 g/cm3	Boiling Point	364.3±32.0 °C at 760 mmHg
	Molecular Formula	C₁₀H₁₂ClNO₂	Melting Point	208-210°C
	MSDS	Chinese USA	Flash Point	174.1±25.1 °C
	Symbol	GHS06, GHS08	Signal Word	Danger

Use of Baclofen

Baclofen is a gamma-amino-butyric acid (GABA) derivative used as a skeletal muscle relaxant.Target: GABA ReceptorBaclofen, a lipophilic analog of gamma-aminobutyric acid, is clinically used to control spasticity. Baclofen pretreatment (3 mg/kg) not only prolonged the time taken for animals to reach a core body temperature of 40 degrees C (P < 0.001), but also reduced the percentage of rats attaining a core body temperature of 40 degrees C [1]. Baclofen overdose may result in coma, apnea, autonomic disturbances, cardiac conduction abnormalities, and seizures. Levels obtained shortly after overdose correlate with length of mechanical ventilation [2].

Name	baclofen
Synonym	More Synonyms

Description	Baclofen is a gamma-amino-butyric acid (GABA) derivative used as a skeletal muscle relaxant.Target: GABA ReceptorBaclofen, a lipophilic analog of gamma-aminobutyric acid, is clinically used to control spasticity. Baclofen pretreatment (3 mg/kg) not only prolonged the time taken for animals to reach a core body temperature of 40 degrees C (P < 0.001), but also reduced the percentage of rats attaining a core body temperature of 40 degrees C [1]. Baclofen overdose may result in coma, apnea, autonomic disturbances, cardiac conduction abnormalities, and seizures. Levels obtained shortly after overdose correlate with length of mechanical ventilation [2].
Related Catalog	Signaling Pathways >> Membrane Transporter/Ion Channel >> GABA Receptor Signaling Pathways >> Neuronal Signaling >> GABA Receptor Research Areas >> Neurological Disease
References	[1]. Bexis, S., et al., Baclofen prevents MDMA-induced rise in core body temperature in rats. Drug Alcohol Depend, 2004. 74(1): p. 89-96. [2]. Perry, H.E., et al., Baclofen overdose: drug experimentation in a group of adolescents. Pediatrics, 1998. 101(6): p. 1045-8.

Description

Related Catalog

Signaling Pathways >> Membrane Transporter/Ion Channel >> GABA Receptor

Signaling Pathways >> Neuronal Signaling >> GABA Receptor

Research Areas >> Neurological Disease

References

[1]. Bexis, S., et al., Baclofen prevents MDMA-induced rise in core body temperature in rats. Drug Alcohol Depend, 2004. 74(1): p. 89-96.

[2]. Perry, H.E., et al., Baclofen overdose: drug experimentation in a group of adolescents. Pediatrics, 1998. 101(6): p. 1045-8.

Density	1.3±0.1 g/cm3
Boiling Point	364.3±32.0 °C at 760 mmHg
Melting Point	208-210°C
Molecular Formula	C₁₀H₁₂ClNO₂
Molecular Weight	213.661
Flash Point	174.1±25.1 °C
Exact Mass	213.055649
PSA	63.32000
LogP	1.56
Vapour Pressure	0.0±0.9 mmHg at 25°C
Index of Refraction	1.577
Water Solubility	1 M HCl: 50 mg/mL

Baclofen MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: MW5084200

CHEMICAL NAME :: Hydrocinnamic acid, beta-(aminomethyl)-p-chloro-

CAS REGISTRY NUMBER :: 1134-47-0

LAST UPDATED :: 199709

DATA ITEMS CITED :: 15

MOLECULAR FORMULA :: C10-H12-Cl-N-O2

MOLECULAR WEIGHT :: 213.68

WISWESSER LINE NOTATION :: Z1YR DG&1VQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 571 ug/kg

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - dyspnea

REFERENCE :: APHRER Annals of Pharmacotherpy. (Harvey Whitney Books Co., POB 42696, Cincinnati, OH 45242) V. 26- 1992- Volume(issue)/page/year: 27,883,1993

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 3429 mg/kg

TOXIC EFFECTS :: Behavioral - coma Cardiac - pulse rate increase, without fall in BP Lungs, Thorax, or Respiration - respiratory obstruction

REFERENCE :: JTCTDW Journal of Toxicology, Clinical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.19- 1982- Volume(issue)/page/year: 32,291,1994

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - woman

DOSE/DURATION :: 18 mg/kg

TOXIC EFFECTS :: Behavioral - coma Lungs, Thorax, or Respiration - respiratory depression

REFERENCE :: JTCTDW Journal of Toxicology, Clinical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.19- 1982- Volume(issue)/page/year: 22,11,1984

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 14 mg/kg

TOXIC EFFECTS :: Behavioral - muscle weakness Behavioral - coma

REFERENCE :: JTCTDW Journal of Toxicology, Clinical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.19- 1982- Volume(issue)/page/year: 20,59,1983

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 4286 ug/kg

TOXIC EFFECTS :: Behavioral - coma Cardiac - pulse rate Vascular - BP lowering not characterized in autonomic section

REFERENCE :: AJEMEN American Journal of Emergency Medicine. (WB Saunders, Philadelphia, PA) V.1- 1983- Volume(issue)/page/year: 4,552,1986

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Parenteral

SPECIES OBSERVED :: Human - woman

DOSE/DURATION :: 25 ug/kg/2D-I

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - mydriasis (pupillary dilation) Behavioral - coma

REFERENCE :: IJCPB5 International Journal of Clinical Pharmacology, Therapy and Toxicology. (Dustri-Verlag Dr. Karl Feistle, Postfach 49, D-8024 Munich-Deisenhofen, Fed. Rep. Ger.) V.6-10, 1972-74; V.18- 1980- Volume(issue)/page/year: 29,274,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 145 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,576,1982

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 115 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 11,181,1980

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 78 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 11,181,1980

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,576,1982

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 103 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 11,181,1980

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 31 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression

REFERENCE :: YAKUD5 Gekkan Yakuji. Pharmaceuticals Monthly. (Yakugyo Jihosha, Inaoka Bldg., 2-36 Jinbo-cho, Kanda, Chiyoda-ku, Tokyo 101, Japan) V.1- 1959- Volume(issue)/page/year: 21,2069,1979 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1500 mg/kg/30D-I

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: YKYUA6 Yakkyoku. Pharmacy. (Nanzando, 4-1-11, Yushima, Bunkyo-ku, Tokyo, Japan) V.1- 1950- Volume(issue)/page/year: 31,871,1980

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1820 mg/kg/26W-I

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - mydriasis (pupillary dilation) Behavioral - muscle weakness Behavioral - ataxia

REFERENCE :: YKYUA6 Yakkyoku. Pharmacy. (Nanzando, 4-1-11, Yushima, Bunkyo-ku, Tokyo, Japan) V.1- 1950- Volume(issue)/page/year: 31,871,1980 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5585 No. of Facilities: 35 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 497 (estimated) No. of Female Employees: 251 (estimated)

Symbol	GHS06, GHS08
Signal Word	Danger
Hazard Statements	H301-H315-H317-H319-H334-H335-H360
Precautionary Statements	Missing Phrase - N15.00950417-P201-P261-P280-P284-P308 + P313
Personal Protective Equipment	Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes	T:Toxic;
Risk Phrases	R61;R25;R36/37/38;R42/43
Safety Phrases	53-22-36/37/39-45-52-36-26
RIDADR	UN 2811 6.1/PG 3
WGK Germany	3
RTECS	MW5084200
Packaging Group	III
Hazard Class	6.1(b)
HS Code	2922499990

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Precursor 8
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DownStream 3
CAS#:22518-27-0 4-(4-Chlorophen... CAS#:120418-62-4 3-(4-Chlorophen... CAS#:111-85-3 1-Chlorooctane

HS Code	2922499990
Summary	HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0%

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4-Amino-3-(4-chlorophenyl)butanoic acid

Lioresa

EINECS 214-486-9

(R,S)-Baclofen

b-(Aminomethyl)-4-chlorobenzenepropanoic Acid

baclon

b-(Aminomethyl)-p-chlorohydrocinnamic Acid

Benzenepropanoic acid, β-(aminomethyl)-4-chloro-

Z1YR DG&1VQ

Kemstro

Clofen

Benzenepropanoic acid, β-(aminomethyl)-4-chloro-(9CI)

Benzenepropanoic acid, β-(aminomethyl)-4-chloro-, (±)-

Baclofen

MFCD00055143

Hydrocinnamic acid, β-(aminomethyl)-p-chloro-

(±)-β-(Aminomethyl)-4-chlorobenzenepropanoic acid

DL-Baclofen

4-Amino-3-(4-chlorophenyl)butyric Acid

(±)-Baclofen

Lioresal

Atrofen

benzenepropanoic acid, b-(aminomethyl)-4-chloro-

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