Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity
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Terazosin(63590-64-7)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity

Product Identification

Product Name
Terazosin
Synonyms
1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-((tetrahydro-2-furanyl)carbonyl)piperazine
Methanone, [4-(4-amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl](tetrahydro-2-furanyl)-

Vasomet
CAS
63590-64-7
Formula
C19H25N5O4
Molecular Weight
387.44
RTECS
TK8044925
Merck
12,9297

Physical and Chemical Properties

Appearance
White to off-white powder.
Solubility in water
4 g/L (25 C)
Melting Point
273
Boiling Point
665
Vapor Pressure
1.6E-17 (25 C)
Density
1.33 g/cm3 (20 C)
pKa/pKb
7.55 (pKb)
Partition Coefficient
-.96
Heat Of Vaporization
97.72 kJ/mol
Usage
1-Adrenoceptor antagonist.

First Aid Measures

Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
Skin
In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Handling and Storage

Storage
Keep tightly closed. Store in a cool dry place.

Hazards Identification

Inhalation
May be harmful if inhaled. Material may be irritating to mucous membranes and upper respiratory tract.
Skin
May cause skin irritation. May be harmful if absorbed through the skin.
Eyes
May cause irritation.
Ingestion
Harmful if swallowed.
Hazards
Emits toxic fumes under fire conditions.
EC Risk Phrase
22
EC Safety Phrase
26

Exposure Controls/Personal Protection

Personal Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
Exposure Effects
Target organs or systems: Cardiovascular system. Central nervous system. Dizziness and other signs of hypotension, facial flushing, and tachycardia. Exposure may cause nausea and vomiting.

Fire Fighting Measures

Flash Point
355
Fire Fighting
Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures

Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides.
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