CAS 1003-21-0 SDS Request & Safety Reference

Preliminary reference disclaimer

This preliminary safety reference is generated from structured MolGraph catalog fields and public reference-style data. It is not a supplier-issued Safety Data Sheet and should not be used as a substitute for supplier-issued documentation, workplace safety review, transport classification, or regulatory compliance decisions. For supplier SDS or COA, submit a documentation request through MolGraph.

Documentation status

Preliminary safety reference

Available

Supplier-issued SDS

Available by request

COA

Available by RFQ / lot confirmation

Transport classification

Requires shipment review

Identity

CAS Number

1003-21-0

Chemical name

5-Bromo-1-methyl-1H-imidazole

Molecular formula

C4H5BrN2

Molecular weight

161 g/mol

Synonyms

1H-Imidazole, 5-bromo-1-methyl-; 5-bromo-1-methyl-imidazole; 5-bromo-N-methyl-imidazole; 5-bromo-1-methyl imidazole; imidazole, 5-bromo-1-methyl-

InChIKey

HATLLUIOEIXWGD-UHFFFAOYSA-N

PubChem CID

1515258

Hazard / GHS Reference

Signal word

Warning

Catalog reference cue; confirm supplier documentation before use.

Hazard statements

H315, H319, H335

Catalog reference cue; confirm supplier documentation before use.

Handling & PPE

Closed. Dry. Store in a well-ventilated area. Recommended storage conditions: Lightproof, sealed, dry, room temperature
Use a P95 (US) or P1 (EU UK 143) particulate respirator if exposed to harmful environments. For higher level of protection, use an OV/AG/P99 (US) or ABEK-P2 (EU UK 143) gas filter. Respirators and parts must be tested and approved by government standards such as NIOSH (US) or CEN (EU).
The remaining and non-recyclable solution should be handed over to a licensed company for disposal. Contact a professional institution with a waste disposal license to handle this substance. Combust the contaminated packaging in a chemical incinerator with post-combustion treatment and scrubbing capabilities, provided it is soluble or mixed with flammable solvents. Contaminated packaging is to be disposed of as unused product.

First Aid / Accidental Release

Do not give anything to an unconscious person. Rinse mouth with water. Consult a physician.
If inhaled, move the patient to fresh air. If breathing stops, perform artificial respiration. Consult a physician.
Rinse with plenty of water for at least 15 minutes and consult a physician.
Wash with soap and plenty of water. Consult a physician.
Use personal protective equipment. Avoid dust generation. Avoid inhalation of vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid inhalation of dust. See
The remaining and non-recyclable solution should be handed over to a licensed company for disposal. Contact a professional institution with a waste disposal license to handle this substance. Combust the contaminated packaging in a chemical incinerator with post-combustion treatment and scrubbing capabilities, provided it is soluble or mixed with flammable solvents. Contaminated packaging is to be disposed of as unused product.

Firefighting / Stability

Use self-contained breathing apparatus if necessary.
and reaction activity
carbon monoxide, carbon dioxide, hydrogen bromide, nitrogen oxides

Physical and Chemical Reference

XLogP

Catalog reference value; verify against supplier SDS before use.

Transport / Shipment Review

Shipment review

Shipment details require review before fulfillment.

Transport classification must be confirmed using supplier SDS and shipment documentation before dispatch.

Transport classification must be confirmed using supplier SDS and shipment documentation before dispatch.

Need supplier documentation?

Request through MolGraph:

Supplier-issued SDS
COA
Purity and pack size confirmation
Availability and lead time review
Shipment documentation review

Catalog-Specific Reference Cues

5-Bromo-1-methyl-1H-imidazole (CAS 1003-21-0) is listed in the Advanced Chemicals portfolio, with molecular formula C4H5BrN2 and molecular weight 161.00 g/mol.
5-Bromo-1-methyl-1H-imidazole is listed for synthetic chemistry workflows, heterocyclic building-block research, research chemical sourcing. MolGraph records supplier catalog evidence for this CAS, with RFQ and documentation request workflows available. Identity fields are backed by local PubChem/structure normalization where available.
Intended for research building-block and synthetic chemistry workflows; structure-derived tags include nitrogen-containing heterocycle.

Related catalog entries

Related public CAS links are not available for this reference page.

Identity

CAS Number

1003-21-0

Chemical name

5-Bromo-1-methyl-1H-imidazole

Molecular formula

C4H5BrN2

Molecular weight

161 g/mol

Synonyms

1H-Imidazole, 5-bromo-1-methyl-; 5-bromo-1-methyl-imidazole; 5-bromo-N-methyl-imidazole; 5-bromo-1-methyl imidazole; imidazole, 5-bromo-1-methyl-

InChIKey

HATLLUIOEIXWGD-UHFFFAOYSA-N

PubChem CID

1515258

Handling & PPE

Closed. Dry. Store in a well-ventilated area. Recommended storage conditions: Lightproof, sealed, dry, room temperature
Use a P95 (US) or P1 (EU UK 143) particulate respirator if exposed to harmful environments. For higher level of protection, use an OV/AG/P99 (US) or ABEK-P2 (EU UK 143) gas filter. Respirators and parts must be tested and approved by government standards such as NIOSH (US) or CEN (EU).
The remaining and non-recyclable solution should be handed over to a licensed company for disposal. Contact a professional institution with a waste disposal license to handle this substance. Combust the contaminated packaging in a chemical incinerator with post-combustion treatment and scrubbing capabilities, provided it is soluble or mixed with flammable solvents. Contaminated packaging is to be disposed of as unused product.

First Aid / Accidental Release

Do not give anything to an unconscious person. Rinse mouth with water. Consult a physician.
If inhaled, move the patient to fresh air. If breathing stops, perform artificial respiration. Consult a physician.
Rinse with plenty of water for at least 15 minutes and consult a physician.
Wash with soap and plenty of water. Consult a physician.
Use personal protective equipment. Avoid dust generation. Avoid inhalation of vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid inhalation of dust. See
The remaining and non-recyclable solution should be handed over to a licensed company for disposal. Contact a professional institution with a waste disposal license to handle this substance. Combust the contaminated packaging in a chemical incinerator with post-combustion treatment and scrubbing capabilities, provided it is soluble or mixed with flammable solvents. Contaminated packaging is to be disposed of as unused product.

Catalog-Specific Reference Cues

5-Bromo-1-methyl-1H-imidazole (CAS 1003-21-0) is listed in the Advanced Chemicals portfolio, with molecular formula C4H5BrN2 and molecular weight 161.00 g/mol.
5-Bromo-1-methyl-1H-imidazole is listed for synthetic chemistry workflows, heterocyclic building-block research, research chemical sourcing. MolGraph records supplier catalog evidence for this CAS, with RFQ and documentation request workflows available. Identity fields are backed by local PubChem/structure normalization where available.
Intended for research building-block and synthetic chemistry workflows; structure-derived tags include nitrogen-containing heterocycle.

CAS 1003-21-0 Safety Reference and Supplier SDS Request

Documentation status

Identity

Hazard / GHS Reference

Handling & PPE

First Aid / Accidental Release

Firefighting / Stability

Physical and Chemical Reference

Transport / Shipment Review

CAS 1003-21-0 Safety Reference and Supplier SDS Request

Documentation status

Identity

Hazard / GHS Reference

Handling & PPE

First Aid / Accidental Release

Firefighting / Stability

Physical and Chemical Reference

Transport / Shipment Review