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Pyrroles, Pyrrolidines & Pyrazoles

4-Bromopyrazole, 99%

Available on request

4-Bromopyrazole, 99% (CAS 2075-45-8) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-011630.

Pack sizes
4-Bromopyrazole, 99% chemical structure
CAS number2075-45-8
FormulaC3H3BrN2
Molar mass146.97 g/mol
Physical formCrystalline
HS code29399900
Purity99%
InChIKeyWVGCPEDBFHEHEZ-UHFFFAOYSA-N
IUPAC name4-bromo-1H-pyrazole

About 4-Bromopyrazole, 99%

Zemixal supplies 4-Bromopyrazole, 99% within its pharma Intermediates & Building Blocks portfolio. Key data (99%): CAS 2075-45-8, formula C3H3BrN2 and molar mass 146.97 g/mol. Typical appearance is white to almost white powder or crystals or chunks.

Typical applications

  • Organic synthesis
  • API synthesis

Handling and storage

Literature values: melting point 93-96 °C. Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Order it in 5 g, 25 g, 100 g and 1 kg packs or ask for a bulk quotation. You receive a batch certificate of analysis and a 16-section SDS with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Typical uses

  • Organic synthesis
  • API synthesis

Applications

Specifications and identifiers

Specifications of 4-Bromopyrazole, 99%
Product name4-Bromopyrazole, 99%
Catalogue numberZX-011630
CAS number2075-45-8
IUPAC name4-bromo-1H-pyrazole
Molecular formulaC3H3BrN2
Molar mass146.97 g/mol
Exact mass145.948
Purity / assay99%
Physical formCrystalline
AppearanceWhite to almost white powder or crystals or chunks
Melting point93-96 °C
XLogP30.3
H-bond donors / acceptors1 / 1
Topological polar surface area28.7 Ų
HS code29399900
InChIKeyWVGCPEDBFHEHEZ-UHFFFAOYSA-N
SMILESC1=C(C=NN1)Br
PubChem CID16375
Synonyms1H-Pyrazole, 4-bromo-, 4-Brompyrazole, 4-bromo-pyrazole, 5-23-04-00172 (Beilstein Handbook Reference), 4-Bromopyrazole, 4-bromo pyrazole, 4-Bromo-1-H-pyrazole

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 4-Bromopyrazole, 99%
5 gQuoted on request
25 gQuoted on request
100 gQuoted on request
1 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 4-Bromopyrazole, 99%

Which CAS number identifies 4-Bromopyrazole, 99%?
4-Bromopyrazole, 99% is registered under CAS 2075-45-8. You may also see it listed as 1H-Pyrazole, 4-bromo-, 4-Brompyrazole, 4-bromo-pyrazole. Our catalogue number for this item is ZX-011630.
What are the formula and molar mass of 4-Bromopyrazole, 99%?
For 4-Bromopyrazole, 99%, its formula is C3H3BrN2 and its molar mass is 146.97 g/mol. The systematic (IUPAC) name is 4-bromo-1H-pyrazole. InChIKey WVGCPEDBFHEHEZ-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for 4-Bromopyrazole, 99%?
This listing is 99% purity. Standard packs are 5 g, 25 g, 100 g, 1 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with 4-Bromopyrazole, 99%?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 4-Bromopyrazole, 99% to my country?
Yes. Because 4-Bromopyrazole, 99% is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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