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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 81503Generated: October 23, 2026

Bromomethylcyclopropane

CYCLOPROPYLMETHYL BROMIDE · Cyclopropane, (bromomethyl)- · Cyclopropylcarbinyl bromide · CPMBr · (Bromomethyl)cyclopr · (Xiu Jiaji)cyclopropane · BroMoMethyl)cyclopropan · Cyclopropylmethylbromid

https://huagongshe.com/en/chemical/81503

Bromomethylcyclopropane molecular structure

Identifiers & Physical Properties

CAS No.7051-34-5
Molecular formulaC4H7Br
Average molar mass135 g/mol
Monoisotopic mass133.97311 g/mol
SMILESBrCC1CC1
InChIKeyAEILLAXRDHDKDY-UHFFFAOYSA-N
PubChem CID81503
EC No.230-331-8
DTXSIDDTXSID40220785

Chemical & Physical Properties

XLogP1.7
Topological polar surface area0
Hydrogen bond donors0
Hydrogen bond acceptors0
Rotatable bonds1
Heavy atoms5
Formal charge0
Complexity30
Melting point87-90 °C
Boiling point105-107 °C(lit.)
Density1.392 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.457(lit.)
Flash point107 °F
Storage conditionsInert atmosphere,2-8°C
SolubilityChloroform (Slightly), Methanol (Slightly)Not miscible in water.
Physical stateLiquid
Specific gravity1.392
ColorClear colorless to slightly colored
BRN605296
StabilityStable. Flammable. Incompatible with strong bases, strong oxidizing agents.
InChI1S/C4H7Br/c5-3-4-1-2-4/h4H,1-3H2
InChIKeyAEILLAXRDHDKDY-UHFFFAOYSA-N
SMILESBrCC1CC1
CAS DataBase Reference7051-34-5(CAS DataBase Reference)
FDA UNIID8ZPP7X54B
NIST Chemistry ReferenceCyclopropane, (bromomethyl)-(7051-34-5)
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS02,GHS07
Signal wordWarning
GHS hazard statementsH226-H302
GHS precautionary statementsP210-P233-P240-P241-P242-P301+P312
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard symbolsXi,F,Xn
Risk statements (R)10-36/37/38-22
Safety statements (S)23-24/25-37/39-26-16-36/37/39
UN transport numberUN 1993 3/PG 3
Water hazard class (WGK)3
Hazard NoteIrritant
Hazard class3Acute Tox. 4 OralFlam. Liq. 3
Packing groupIII
Customs code29035990
Storage class3 - Flammable liquids
REACH registrationsActive
Limited quantities5.0 L (1.3 gallons) (liquid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

Safety & Regulations

GHS classificationThis chemical does not meet GHS hazard criteria for 0.5% (1 of 182) of reports.DangerH225 (57.1%): Highly Flammable liquid and vapor [Danger Flammable liquids]H226 (42.3%): Flammable liquid and vapor [Warning Flammable liquids]H302 (70.9%): Harmful if swallowed [Warning Acute toxicity, oral]H315 (69.8%): Causes skin irritation [Warning Skin corrosion/irritation]H319 (69.2%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H335 (68.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 182 reports by companies from 16 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.Reported as not meeting GHS hazard criteria per 1 of 182 reports by companies.There are 15 notifications provided by 181 of 182 reports by companies with hazard statement code(s).Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Regulatory informationChemical: Cyclopropane, (bromomethyl)-Status: Active Update: 06-03-2019 https://echa.europa.eu/registration-dossier/-/registered-dossier/21443Bromomethyl-cyclopropane: Does not have an individual approval but may be used under an appropriate group standard
Hazard Classes and CategoriesFlam. Liq. 2 (57.1%)Flam. Liq. 3 (42.3%)Acute Tox. 4 (70.9%)Skin Irrit. 2 (69.8%)Eye Irrit. 2A (69.2%)STOT SE 3 (68.7%)
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Water hazard class (WGK)3
UN transport numberUN 1993 3/PG 3
Customs code29035990
Risk statements (R)10-36/37/38-22
Signal wordWarning
GHS pictogramGHS02,GHS07
Hazard symbolsXi,F,Xn
hazard_noteIrritant
Safety statements (S)23-24/25-37/39-26-16-36/37/39
Hazard class3Acute Tox. 4 OralFlam. Liq. 3
Storage class3 - Flammable liquids
Packing groupIII
GHS hazard statementsH226-H302
Limited quantities5.0 L (1.3 gallons) (liquid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
REACH registrationsActive
GHS precautionary statementsP210-P233-P240-P241-P242-P301+P312

Applications & Uses

Uses

(Bromomethyl)cyclopropane is used in the synthesis of 1,4-dienes by iron-catalyzed cross-coupling with alkenyl Grignard reagents.

Description

(Bromomethyl) cyclopropane is a cyclopropane derivative. It can be used as a synthetic building block for the introduction of the cyclopropylmethyl group. It was also used in the synthesis of 1, 4-dienes via iron-catalyzed cross-coupling with alkenyl Grignard reagents.

Uses

(Bromomethyl)cyclopropane was used as a synthetic building block for the introduction of the cyclopropylmethyl group. It was also used in the synthesis of 1,4-dienes via iron-catalyzed cross-coupling with alkenyl Grignard reagents.

General Description

The coupling reaction of (bromomethyl)cyclopropane with phenylmagnesium bromide was studied.