Does 1-Bromo-2-methylbutane CAS 5973-11-5 specify one enantiomer?

No. Carbon 2 is stereogenic, but the product name and CAS reference do not by themselves define an enantiomeric composition. If stereochemistry affects the intended reaction, specify the required optical form or enantiomeric ratio, chiral analytical method and acceptance criterion rather than relying on total GC assay alone.

Should stabilization be stated when purchasing 1-Bromo-2-methylbutane?

Yes. Commercial listings may identify material stabilized with potassium carbonate, so stabilized and unstabilized grades should not be assumed equivalent. Define GC assay, water, acidity, relevant elimination or isomeric impurities, stabilizer identity and level where applicable, packaging and storage conditions, and confirm these points against the current COA, TDS and SDS.

1-Bromo-2-methylbutane CAS 5973-11-5

1-Bromo-2-methylbutane , CAS 5973-11-5 , is a primary alkyl bromide also known as 2-methylbutyl bromide or active amyl bromide. Its molecular formula is C5H11Br and molecular weight is 151.04 g/mol. The molecule contains a stereogenic center at C2, so an unspecified commercial grade may be racemic or otherwise lack enantiomeric control. Buyers should define GC assay, constitutional isomers, enantiomeric requirements, acidity, water and reaction performance instead of relying on a generic 99% claim.

CAS: 5973-11-5
Synonyms: 1-Bromo-2-methylbutane, 2-Methyl-1-bromobutane, 2-Methylbutyl bromide, Active amyl bromide
Molecular Formula: C₅H₁₁Br
Grade: Confirm identity and primary-bromide structure, GC assay, constitutional-isomer profile, acidity, water, residual solvents and any stereochemical requirement against the current COA; qualify performance in the intended reaction.
Package: State quantity and destination; confirm the current compatible sealed container, closure, secondary containment, net fill, storage conditions and dangerous-goods requirements against the SDS.

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Product Description

1 Identity and physicochemical profile

2 Applications and grade selection

3 Storage and handling

4 Safety, documentation and procurement

Identity and physicochemical profile

Item	Technical guidance
Product identity	1-Bromo-2-methylbutane; 2-methylbutyl bromide
CAS number	5973-11-5
Formula / molecular weight	C₅H₁₁Br / 151.04 g/mol
Structural character	Primary bromomethyl group adjacent to a stereogenic secondary carbon
Key purchase controls	Identity, GC assay, constitutional isomers, enantiomeric composition when required, acidity or HBr, water and residual starting materials

Applications and grade selection

1-Bromo-2-methylbutane may be evaluated as a primary alkylating intermediate in controlled substitution, organometallic and carbon-chain-introduction reactions. Process outcome depends on nucleophile, base, solvent, temperature, water and isomer profile, while stereochemical requirements must be defined separately.

Confirm whether racemic or stereochemically controlled material is required for the downstream route.
Set limits for constitutional isomers, residual alcohol or hydrocarbons, acidity, water and elimination products.
Compare conversion, selectivity, work-up and impurity carryover in a representative reaction.

Storage and handling

Keep tightly closed in compatible packaging away from heat, ignition sources, moisture, strong bases and oxidizers under the conditions stated in the current SDS. Minimize repeated opening and monitor acidity or color changes.

Safety, documentation and procurement

Handle as a flammable, reactive organobromine intermediate with suitable ventilation, bonding or grounding where required, gloves and eye protection. Procurement should define specification, quantity, packaging, destination and transport documentation.

FAQ - Technical & Supply Chain

Q:
Does 1-Bromo-2-methylbutane CAS 5973-11-5 specify one enantiomer?

A: No. Carbon 2 is stereogenic, but the product name and CAS reference do not by themselves define an enantiomeric composition. If stereochemistry affects the intended reaction, specify the required optical form or enantiomeric ratio, chiral analytical method and acceptance criterion rather than relying on total GC assay alone.
Q:
Should stabilization be stated when purchasing 1-Bromo-2-methylbutane?

A: Yes. Commercial listings may identify material stabilized with potassium carbonate, so stabilized and unstabilized grades should not be assumed equivalent. Define GC assay, water, acidity, relevant elimination or isomeric impurities, stabilizer identity and level where applicable, packaging and storage conditions, and confirm these points against the current COA, TDS and SDS.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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