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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 74413Generated: October 26, 2026

Allylmagnesium bromide

2-Propenylmagnesium bromide · allylmagnesium bromide solution · Allylmagnesium bromide 1M solution in THF · Allylbromomagnesium · Bromoallylmagnesium · Allylmagnesiumbromid · ALLYLMAGNESIUM BROMIDE · Bromo-2-propenylmagnesium

https://huagongshe.com/en/chemical/74413

Allylmagnesium bromide molecular structure

Identifiers & Physical Properties

CAS No.1730-25-2
Molecular formulaC3H5BrMg
Average molar mass145.28 g/mol
SMILESC=C[CH2-].[Br-].[Mg+2]
InChIKeyFEMBXICCJNZMMC-UHFFFAOYSA-M
PubChem CID74413
EC No.217-046-4
DTXSIDDTXSID30938266

Chemical & Physical Properties

Topological polar surface area0
Hydrogen bond donors0
Hydrogen bond acceptors2
Rotatable bonds0
Heavy atoms5
Formal charge0
Complexity14.4
Chemical classesMetals -> Metals, Organic Compounds
Physical Description10-30% Solution in diethyl ether: Clear light brown liquid[Sigma-Aldrich MSDS]
Density0.851 g/mL at 25 °C
Flash point−40 °F
Storage conditionsRefrigerator
Physical stateSolution
ColorYellow-green or gray
Sensitivityair sensitive, moisture sensitive
BRN969335
InChIInChI=1S/C3H5.BrH.Mg/c1-3-2/h3H,1-2H21H/q+1/p-1
InChIKeyFEMBXICCJNZMMC-UHFFFAOYSA-M
SMILESC([Mg]Br)C=C
CAS DataBase Reference1730-25-2
UNSPSC Code12352103
NACRESNA.22
GHS pictogramGHS02,GHS05,GHS07
Signal wordDanger
GHS hazard statementsH225-H250-H260-H302-H314-H336
GHS precautionary statementsP210-P222-P223-P231+P232-P370+P378-P422
Target organsCentral nervous system
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard symbolsF+,C,F
Risk statements (R)12-14/15-19-22-34-66-67-11
Safety statements (S)9-16-29-33-43-45-36/37/39-26
UN transport numberUN 3399 4.3/PG 1
Water hazard class (WGK)1
F1-3-10
Hazard class8Acute Tox. 4 OralEye Dam. 1Flam. Liq. 1Skin Corr. 1BSTOT SE 3Water-react 1
Packing groupIII
Customs code29319090
Storage class4.3 - Hazardous materials which set free flammable gases upon contact with water

Safety & Regulations

GHS classificationDangerH225 (37.7%): Highly Flammable liquid and vapor [Danger Flammable liquids]P210, P222, P223, P231, P231+P232, P233, P240, P241, P242, P243, P260, P264, P280, P301+P330+P331, P302+P335+P334, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P321, P363, P370+P378, P402+P404, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 69 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazards summary10-30% Solution in diethyl ether (CAS# 60-29-7): Reacts violently with water producing flammable gases that may ignite spontaneouslyCauses burnsInhalation may cause corrosive injuries to upper respiratory tract and lungs[Sigma-Aldrich MSDS] See Methyl magnesium bromide.
Hazard Classes and CategoriesFlam. Liq. 2 (37.7%)
Protective Action Criteria (PAC)1.2 [mg/m3]13 [mg/m3]79 [mg/m3]
Adverse effectsDermatotoxin - Skin burns.
F1-3-10
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Water hazard class (WGK)1
UN transport numberUN 3399 4.3/PG 1
Customs code29319090
Risk statements (R)12-14/15-19-22-34-66-67-11
Signal wordDanger
GHS pictogramGHS02,GHS05,GHS07
Hazard symbolsF+,C,F
Safety statements (S)9-16-29-33-43-45-36/37/39-26
Hazard class8Acute Tox. 4 OralEye Dam. 1Flam. Liq. 1Skin Corr. 1BSTOT SE 3Water-react 1
Storage class4.3 - Hazardous materials which set free flammable gases upon contact with water
Packing groupIII
Target organsCentral nervous system
GHS hazard statementsH225-H250-H260-H302-H314-H336
GHS precautionary statementsP210-P222-P223-P231+P232-P370+P378-P422

Applications & Uses

Uses

Allylmagnesium bromide solution can be used in the Grignard reaction, which is a key step to synthesize:2-(9,10-dihydro-9,10-propanoanthracen-9-yl)-N-methylethanamine (2), a homolog of benzoctamine tarchonanthuslactone(+)-preussinpolyhydroxylated quinolizidine alkaloids