
D-Tryptophan Methyl Ester Hydrochloride (CAS 14907-27-8)
API name/end use: Tadalafil Cas number: 14907-27-8 Molecular formula: C12H14N2O2·HCl Molecular Weight: 254.71 Appearance: Solid Powder Storage: Room Temperature (Recommended in a
Chemox Pharma specializes in delivering high-quality 8-Bromo-7-(but-2-yn-1-yl)-3-methyl-1H-purine-2,6(3H,7H)-dione (CAS No.: 666816-98-4) with reliable and technical expertise that brings precise quality, purity and regulatory compliance. Chemox Pharma offer efficient supply chain with complete transparency and full regulatory document support.
Reach us if you are looking for high quality 8-Bromo-7-(but-2-yn-1-yl)-3-methyl-1H-purine-2,6(3H,7H)-dione (CAS No.: 666816-98-4) as Chemox Pharma work dedicatedly with customers to ensure that sourcing of intermediate CAS No.: 666816-98-4 is efficient, seamless and meet their requirements. Our products are trusted by pharmaceutical industries, which reflects our global footprints and reputation. Our facilities follow the standard regulations of the world like DCGI, WHO-GMP, FDA.
| Sr. No. | Description | Application |
|---|---|---|
| 1 | Brominated purine intermediate | API synthesis |
| 2 | Heterocyclic purine building block | Medicinal chemistry |
| 3 | Alkynyl-substituted purine derivative | Pharmaceutical R&D |
| 4 | Functionalized nucleobase intermediate | Drug development |
| 5 | Specialty heterocyclic intermediate | Fine chemical synthesis |
This compound is widely used in pharmaceutical research and development as a purine-based heterocyclic intermediate for advanced drug synthesis.
8-Bromo-7-(but-2-yn-1-yl)-3-methyl-1H-purine-2,6(3H,7H)-dione should be handled according to standard pharmaceutical intermediate and laboratory chemical safety procedures. Appropriate industrial hygiene and protective measures must be followed during handling and synthesis operations.
Use appropriate personal protective equipment (PPE)
Avoid inhalation of dust and contact with skin or eyes
Handle in controlled, well-ventilated environments
Follow chemical handling and containment protocols
Refer to Safety Data Sheet (SDS) for detailed safety information
This compound is intended strictly for pharmaceutical intermediate and research use.
As a purine pharmaceutical intermediate, 8-Bromo-7-(but-2-yn-1-yl)-3-methyl-1H-purine-2,6(3H,7H)-dione does not exhibit direct pharmacological activity. It functions as a brominated and alkynyl-substituted purine building block in multi-step organic synthesis pathways for active pharmaceutical ingredients. The bromine and alkyne functional groups enable selective substitution, coupling, and cyclization reactions essential in medicinal chemistry and drug development.
Handle in approved chemical or pharmaceutical facilities
Avoid exposure without protective equipment
Prevent dust formation and inhalation
Follow laboratory and industrial safety procedures
Dispose according to regulatory guidelines
Store in tightly closed containers
Protect from moisture and light
Maintain cool, dry storage conditions
Keep in designated chemical storage areas
Follow standard warehouse practices
It is a purine-based pharmaceutical intermediate used in advanced API synthesis, medicinal chemistry research, and development of heterocyclic drug compounds.
Yes, Chemox Pharma manufactures and supplies 8-Bromo-7-(but-2-yn-1-yl)-3-methyl-1H-purine-2,6(3H,7H)-dione (CAS 666816-98-4) with high purity for pharmaceutical synthesis applications.
It is a brominated and alkynyl-substituted purine heterocyclic intermediate used as a building block in pharmaceutical synthesis.
The CAS number is 666816-98-4.
It should be stored in tightly sealed containers in a cool, dry place protected from moisture and light, following standard chemical storage practices.

API name/end use: Tadalafil Cas number: 14907-27-8 Molecular formula: C12H14N2O2·HCl Molecular Weight: 254.71 Appearance: Solid Powder Storage: Room Temperature (Recommended in a

API name/end use: Mirabegron Cas number: 223673-34-5 Molecular formula: C16H18N2O3 Molecular Weight: 286.33 Appearance: Solid crystalline powder Storage: 2-8°C Refrigerator

API name/end use: Mirabegron Cas number: 521284-22-0 Molecular formula: C16H21ClN2O Molecular Weight: 292.81 Appearance: Solid crystalline powder Storage: Keep in dark place,