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106-96-7

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Identification

Name
3-Bromopropyne
CAS
106-96-7
Synonyms
3-BROMO-1-PROPYNE
3-BROMOPROPYNE
G-BROMOALLYLENE
PROPARGYL BROMIDE
1-Brom-2-propin
1-Bromo-2-propyne
2-Propynyl bromide
3-bromo-1-propyn
3-bromo-propyn
-Bromo-propyne
gamma-Bromoallylene
Progargyl bromide
propargyl
propargylbromide101
Propyne, 3-bromo-
ProPargyl Bromide 97% min or 80% in Toluene
PROPARGYL BROMIDE, 80 WT. % SOLUTION IN TOLUENE
PROPARGYL BROMIDE SOLUTION, ~80% IN TOLU ENE, STAB.
PROPARGYL BROMIDE, 80 WT. % SOLUTION IN
Propargyl bromide, 80 wt% solution in toluene, stabilized
EINECS(EC#)
203-447-1
Molecular Formula
C3H3Br
MDL Number
MFCD00000241
Molecular Weight
118.96
MOL File
106-96-7.mol

Chemical Properties

Appearance
yellow solution
Melting point 
-61°C
mp 
-61°C
Boiling point 
97 °C

bp 
97 °C

density 
1.38 g/mL at 20 °C

refractive index 
n20/D 1.494

Fp 
65 °F

storage temp. 
Refrigerator
form 
Liquid
color 
Colorless - Yellow
Water Solubility 
Miscible with ethanol, ether, benzene, carbon tetrachloride and chloroform. Immiscible with water.
Sensitive 
Light Sensitive
BRN 
605309
InChIKey
YORCIIVHUBAYBQ-UHFFFAOYSA-N
CAS DataBase Reference
106-96-7(CAS DataBase Reference)
NIST Chemistry Reference
1-Propyne, 3-bromo-(106-96-7)
EPA Substance Registry System
106-96-7(EPA Substance)

Questions And Answer

Uses
Propargyl Bromide is used in the synthesis of betulonic acid-peptide conjugates with anti-inflammatory activity. Also used in the synthesis of PEG and peptide-grafted polyesters.

Safety Data

Hazard Codes 
F,T,C
Risk Statements 
R60:May impair fertility.
R61:May cause harm to the unborn child.
R20/21:Harmful by inhalation and in contact with skin .
R25:Toxic if swallowed.
R63:Possible risk of harm to the unborn child.
R36/37/38:Irritating to eyes, respiratory system and skin .
R11:Highly Flammable.
R67:Vapors may cause drowsiness and dizziness.
R65:Harmful: May cause lung damage if swallowed.
R48/20:Harmful: danger of serious damage to health by prolonged exposure through inhalation .
Safety Statements 
S53:Avoid exposure-obtain special instruction before use .
S16:Keep away from sources of ignition-No smoking .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S37/39:Wear suitable gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label .
RIDADR 
UN 2345 3/PG 2

WGK Germany 
3

RTECS 
UK4375000

8
Hazard Note 
Highly Flammable/Toxic/Corrosive
TSCA 
Yes
HazardClass 
3
PackingGroup 
II
HS Code 
29033990
Safety Profile
A poison by ingestion. A dangerous fire hazard when exposed to heat or flame. The aerated liquid may be ignited by pressure. A dangerous, extremely shock-sensitive explosive. It can detonate when heated to 22O°C, by impact (especially when mixed with chloropicrin), or when heated whde confined. May explode on contact with copper, high copper alloys, mercury, or silver. Mixtures with trichloronitromethane are shockand heat- sensitive explosives. Can react vigorously with oxidizing materials. To fight fire, use water, foam, CO2, dry chemical. When heated to decomposition it emits highly toxic fumes of Br-. See also ACETYLENE COMPOUNDS and BROMIDES.
Hazardous Substances Data
106-96-7(Hazardous Substances Data)

Raw materials And Preparation Products

Hazard Information

General Description
A colorless to light yellow liquid substance with a sharp odor. Flash point 65°F. Denser than water and insoluble in water. Vapors are heavier than air. May be irritating to skin and eyes. Used to make other chemicals. 3-BROMOPROPYNE(106-96-7) may decompose explosively with mild shock.
Reactivity Profile
3-BROMOPROPYNE is soluble in alcohol, ether, chloroform, carbon tetrachloride and carbon disulfide. 3-BROMOPROPYNE is highly flammable and a dangerous fire risk, sensitive to shock. 3-BROMOPROPYNE is used in organic syntheses, preparation of resins and perfume intermediates [Hawley]. There is a high danger of formation of explosive metal acetylides, when this compound comes in contact with copper, high-copper alloys, mercury, or silver.
Air & Water Reactions
Highly flammable. Insoluble in water.
Hazard
Flammable, dangerous fire and explosion risk. Irritant.
Health Hazard
This material is very toxic via the oral route. If inhaled, may be harmful; contact may cause burns to skin and eyes.
Fire Hazard
This material detonates at 428F or more; ignites by impact. Emits highly toxic fumes of bromides when heated to decomposition. Reacts vigorously with oxidizing materials. Becomes shock-sensitive when mixed with chloropicrin. Unstable, avoid heat, flame, shock, and other chemicals
Description
Propargyl bromide is a Shock sensitive liquid, lachrymator. Supplied as an 80% solution in toluene stabilized with magnesium oxide. Alternative formulations are currently under development.
Chemical Properties
yellow solution
Synthesis Reference(s)
Tetrahedron Letters, 4, p. 483, 1963 DOI: 10.1039/jr9630005127
Pharmacology
Mode of action is considered to be reaction with nucleophiles in living organisms.
Metabolism
Reacts slowly with water to yield propargyl alcohol and bromide ion. It is expected to move as a typical fumigant through the soil. Probably not an ozone-depleting substance due to decomposition on absorption of ultraviolet light.

Material Safety Data Sheet(MSDS)

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