6-Bromopyrazolo[1,5-a]pyrimidine TCI B6505

Chemical Identity

CAS No.: 705263-10-1
PubChem: CID 22236701
Formula: C6H4BrN3
Molecular weight: 198.02 g/mol
Purity: >95.0%(HPLC)(qNMR)
Reference databases: ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 6-bromopyrazolo[1,5-a]pyrimidine
SMILES: C1=C2N=CC(=CN2N=C1)Br
InChIKey: VDHTXLUCUNPVLO-UHFFFAOYSA-N
MDL: MDL09832894

Rp 1.272.600,00

~~Rp 905.100,00~~ Rp 1.272.600,00

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6-Bromopyrazolo[1,5-a]pyrimidine from TCI is a bicyclic heterocyclic compound. Its framework is a pyrazole ring fused to a pyrimidine ring, with a bromine atom at position 6. In organic synthesis and medicinal chemistry laboratories, it serves as a building block, a starting material for constructing more complex molecules. The pyrazolo[1,5-a]pyrimidine scaffold appears frequently in drug discovery literature. Halogenated derivatives such as this one therefore help researchers who want to prepare analogue series in a targeted and efficient way.

The main appeal of this compound is its bromine atom. A bromine on an aromatic ring is a common leaving group that can be replaced through a range of transition-metal-catalysed cross-coupling reactions. Chemists can therefore attach aryl, heteroaryl, alkenyl, or amine groups at a specific position without rebuilding the heterocyclic core. The nitrogen-rich biheterocyclic core also offers hydrogen-bonding interaction points that matter in ligand design. TCI supplies the compound with clear quality documentation, which makes it suitable for research that requires reproducible results.

In Indonesia, compounds like this are relevant to university and institutional research groups working in organic synthesis, medicinal chemistry, and early-stage drug discovery. Typical users include laboratories that prepare small libraries of heterocyclic analogues for structure-activity studies, postgraduate researchers developing new synthetic routes, and teams exploring scaffolds reported in the pharmaceutical literature. Because the compound is a defined, documented building block from an established manufacturer, local laboratories can plan multi-step syntheses with confidence that the starting material is consistent from batch to batch.

Related TCI products

Cross-coupling reactions: the bromine at position 6 acts as a reactive handle for transition-metal-catalysed couplings, so aryl or heteroaryl groups can be introduced at a defined site.
Amination of the heterocyclic core: the aryl bromide can be converted into amine-substituted derivatives through catalysed carbon-nitrogen bond formation without changing the fused ring system.
Analogue series for medicinal chemistry: because the pyrazolo[1,5-a]pyrimidine scaffold is common in drug research, this compound supports systematic preparation of related analogues for structure-activity studies.
Ligand design studies: the nitrogen-rich fused biheterocyclic core provides hydrogen-bonding interaction points, which makes it a useful starting framework when designing molecules intended to bind biological targets.
Synthetic methodology development: as a well-defined halogenated heterocycle with quality documentation, it serves as a dependable substrate for testing and optimising new coupling or functionalisation methods.

Brand	TCI (product code B6505)
CAS number	705263-10-1
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Heterocyclic Building Blocks
Pack sizes	as listed in the current TCI catalogue; please confirm the available sizes when ordering
Physical form	refer to the TCI product specification and Certificate of Analysis
Storage	follow the storage conditions stated on the TCI label and Safety Data Sheet

Store 6-Bromopyrazolo[1,5-a]pyrimidine in its original, tightly closed container in a cool, dry, well-ventilated place, away from direct sunlight, heat sources, and moisture. Keep it separate from strong oxidising agents and incompatible chemicals, and always follow the specific conditions given on the TCI label and Safety Data Sheet. Handle the compound in a fume hood and wear appropriate personal protective equipment, including a laboratory coat, safety glasses, and chemical-resistant gloves. Avoid inhaling dust and avoid contact with skin and eyes. Use clean, dry tools when weighing to prevent contamination, reseal the container promptly after use, and dispose of waste in line with local laboratory and environmental regulations.

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