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tetracaine hydrochloride usp cas no:136-47-0

Synonyms: Tetracaine HCl; 2-dimethylaminoethyl 4-n-butylaminobenzoate hydrochloride; 4-(Butylamino)benzoic acid 2-(dimethylamino)ethyl ester hydrochloride; 4-(butylamino)-Benzoic acid, 2-(dimethylamino)ethyl ester, monohydrochloride; p-butylaminobenzoyl-2-dimethylaminoethanol hydrochloride; Amethocaine hydrochloride; Anethaine; Butethanol; Curtacain; Decicain; Gingicain M; Menonasal; Pantocaine; Pontocaine hydrochloride; Tetracaine hydrochloride; Tonexol; Tetracaine?HCL

Identification
Nametetracaine hydrochloride usp
CAS136-47-0
SynonymsTetracaine HCl; 2-dimethylaminoethyl 4-n-butylaminobenzoate hydrochloride; 4-(Butylamino)benzoic acid 2-(dimethylamino)ethyl ester hydrochloride; 4-(butylamino)-Benzoic acid, 2-(dimethylamino)ethyl ester, monohydrochloride; p-butylaminobenzoyl-2-dimethylaminoethanol hydrochloride; Amethocaine hydrochloride; Anethaine; Butethanol; Curtacain; Decicain; Gingicain M; Menonasal; Pantocaine; Pontocaine hydrochloride; Tetracaine hydrochloride; Tonexol; Tetracaine?HCL
EINECS(EC#)205-248-5
Molecular FormulaC15H24N2O2?HCl
Molecular Weight264.36326
Chemical Properties
AppearanceWhite or off white crystalline powder
storage tempKeep tightly closed.
Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
Hazardclass6.1
Safety Data

Hazard T:Toxic
Risk R25;R36;R43
Safety

Hazard Codes:?ToxicT
Risk Statements: 25-36-42/43?
R25: Toxic if swallowed.?
R36: Irritating to eyes.?
R42/43: May cause sensitization by inhalation and skin contact.
Safety Statements: 26-45-36/37/39-22-53?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)?
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.?
S22: Do not breathe dust.?
S53: Avoid exposure - obtain special instructions before use.
RIDADR: 2811
RTECS: DG4900000
Poison by ingestion, intraperitoneal, intravenous, intraspinal, and subcutaneous routes. An eye irritant. When heated to decomposition it emits very toxic fumes of HCl and NOx. An FDA over-the-counter drug used as a local anesthetic.


Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 intravenous 4mg/kg (4mg/kg) ? Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 739, 1957.
guinea pig LD50 subcutaneous 19500ug/kg (19.5mg/kg) ? Quarterly Journal of Pharmacy & Pharmacology. Vol. 20, Pg. 380, 1947.
mouse LD50 intraperitoneal 23mg/kg (23mg/kg) ? Archiv der Pharmazie Vol. 321, Pg. 115, 1988.
mouse LD50 intravenous 6400ug/kg (6.4mg/kg) ? Drugs in Japan Vol. -, Pg. 815, 1995.
mouse LD50 oral 160mg/kg (160mg/kg) BEHAVIORAL: MUSCLE WEAKNESS

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION

LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES
Oyo Yakuri. Pharmacometrics. Vol. 9, Pg. 413, 1975.
mouse LD50 subcutaneous 25mg/kg (25mg/kg) ? Pharmacology and Toxicology. English translation of FATOAO. Vol. 22, Pg. 138, 1959.
rabbit LD50 intratracheal 4400ug/kg (4.4mg/kg) BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Journal of Pharmacology and Experimental Therapeutics. Vol. 132, Pg. 87, 1961.
rabbit LD50 intravenous 2150ug/kg (2.15mg/kg) ? Drugs in Japan Vol. 6, Pg. 490, 1982.
rabbit LD50 subcutaneous 15mg/kg (15mg/kg) ? Journal of Pharmacology and Experimental Therapeutics. Vol. 93, Pg. 388, 1948.
rabbit LDLo intraspinal 5mg/kg (5mg/kg) ? Journal of Pharmacology and Experimental Therapeutics. Vol. 57, Pg. 221, 1936.
rat LD50 intraperitoneal 23500ug/kg (23.5mg/kg) BEHAVIORAL: ATAXIA

LUNGS, THORAX, OR RESPIRATION: DYSPNEA

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION
Oyo Yakuri. Pharmacometrics. Vol. 9, Pg. 413, 1975.
rat LD50 intravenous 4500ug/kg (4.5mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: MUSCLE WEAKNESS

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
Oyo Yakuri. Pharmacometrics. Vol. 9, Pg. 413, 1975.
rat LD50 subcutaneous 24mg/kg (24mg/kg) BEHAVIORAL: ATAXIA

LUNGS, THORAX, OR RESPIRATION: DYSPNEA

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION
Oyo Yakuri. Pharmacometrics. Vol. 9, Pg. 413, 1975.

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