Your Professional Pharmaceutical Intermediate Supplier
Located in Xiasha Economic Development Park of Hangzhou city (capital of Zhejiang province in the southeast coastal region of China), Hangzhou Dingyan Chem Co.,Ltd is a modern private enterprise; Twe are mainly engaged in the development, trade and independent import and export business of hi-tech products such as pharmaceutical materials (APIs), pharmaceutical intermediates, fine chemicals and biochemical reagents, etc.
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![3-Nitrobenzaldehyde CAS 99-61-6]()
3-Nitrobenzaldehyde CAS 99-61-6Product Name: 3-NitrobenzaldehydeCAS No.: 99-61-6Molecular Formula: C7H5NO3Molecular Weight: 151.12Melting Point: 56 °CBoiling Point: 285-290 °CDensity: 1.2792Vapor Density: 5.21 (vs air)Refractiveread more -
![Trifluoroacetic Acid CAS 76-05-1]()
Trifluoroacetic Acid CAS 76-05-1Product Name: Trifluoroacetic acidCAS No.: 76-05-1Molecular Formula: C2HF3O2Molecular Weight: 114.02Melting Point: -15.4 °C (lit.)Boiling Point: 72.4 °C (lit.)Density: 1.489 g/mL at 20 °C (lit.)Vaporread more -
![3,4-Dihydroxybenzaldehyde CAS 139-85-5]()
3,4-Dihydroxybenzaldehyde CAS 139-85-5Product Name: 3,4-DihydroxybenzaldehydeCAS No.: 139-85-5Molecular Formula: C7H6O3Molecular Weight: 138.12Melting Point: 150-157 °C (lit.)Boiling Point: 213.5 °C (rough estimate)Density: 1.2667 (roughread more -
![Phenylboronic Acid CAS 98-80-6]()
Phenylboronic Acid CAS 98-80-6Product Name: Phenylboronic acidCAS No.: 98-80-6Molecular Formula: C6H7BO2Molecular Weight: 121.93Melting Point: 216-219 °C (lit.)Boiling Point: 265.9±23.0 °C (Predicted)Density: 1.13±0.1 g/cm3read more -
![4-Hydroxypyridine CAS 626-64-2]()
4-Hydroxypyridine CAS 626-64-2Product Name: 4-HydroxypyridineCAS No.: 626-64-2Molecular Formula: C5H5NOMolecular Weight: 95.1Melting Point: 150-151 °C (lit.)Boiling Point: 230-235 °C/12 mmHg (lit.)Density: 1.1418 (roughread more -
![4-Chlorobenzaldehyde CAS 104-88-1]()
4-Chlorobenzaldehyde CAS 104-88-1Product Name: 4-ChlorobenzaldehydeCAS No.: 104-88-1Molecular Formula: C7H5ClOMolecular Weight: 140.57Melting Point: 46 °CBoiling Point: 213-214 °CDensity: 1.196Vapor Density: 0.6 (vs air)Vaporread more -
![3-Chlorobenzaldehyde CAS 587-04-2]()
3-Chlorobenzaldehyde CAS 587-04-2Product Name: 3-ChlorobenzaldehydeCAS No.: 587-04-2Molecular Formula: C7H5ClOMolecular Weight: 140.57Melting Point: 9-12 °C (lit.)Boiling Point: 213-214 °C (lit.)Density: 1.241 g/mL at 25 °Cread more -
![Thiophene CAS 110-02-1]()
Thiophene CAS 110-02-1Product Name: ThiopheneCAS No.: 110-02-1Molecular Formula: C4H4SMolecular Weight: 84.14Melting Point: -38 °C (lit.)Boiling Point: 84 °C (lit.)Density: 1.051 g/mL at 25 °C (lit.)Vapor Density: 2.9 (vsread more -
![D-Galactose CAS 59-23-4]()
D-Galactose CAS 59-23-4Product Name: D-GalactoseCAS No.: 59-23-4Molecular Formula: C6H12O6Molecular Weight: 180.16Melting Point: 168-170 °C (lit.)Specific Rotation: +79.0～+81.0° (D/20℃) (c=10, dil. NH4OH)Boiling Point:read more -
![3,4,5-Trimethoxybenzaldehyde CAS 86-81-7]()
3,4,5-Trimethoxybenzaldehyde CAS 86-81-7Product Name: 3,4,5-TrimethoxybenzaldehydeCAS No.: 86-81-7Molecular Formula: C10H12O4Molecular Weight: 196.2Melting Point: 72-74 °C (lit.)Boiling Point: 163-165 °C/10 mmHg (lit.)Density: 1.2166read more -
![Chloral Hydrate CAS 302-17-0]()
Chloral Hydrate CAS 302-17-0Product Name: Chloral hydrateCAS No.: 302-17-0Molecular Formula: C2H3Cl3O2Molecular Weight: 165.4Melting Point: 57 °C (lit.)Boiling Point: 97 °CDensity: 1.43 g/mL at 20 °CVapor Pressure: 19.998 hParead more -
![8-Hydroxyquinoline CAS 148-24-3]()
8-Hydroxyquinoline CAS 148-24-3Product Name: 8-HydroxyquinolineCAS No.: 148-24-3Molecular Formula: C9H7NOMolecular Weight: 145.16Melting Point: 70-73 °C (lit.)Boiling Point: 267 °C (752 mm Hg (lit.))Density: 1.0340 g/LVaporread more
Why Choose Us
Foreign trade market
Now, our products are well sold in more than 60 countries and regions in North America, Western Europe, Southeast Asia, Central and South America.
Professional team
The company has a group of professionals engaged in chemical management, production, research and development, trade.
Our certifications
The company strictly in accordance with ISO9001, ISO14001, GB/T- The requirements of 28001 are to supervise, control and operate all aspects of production in order to achieve the perfect combination of social responsibility, employee health, environmental protection and product quality.
Advanced Equipment
Professional test equipments like HPLC/GC/UV are used and full-time quality control personnel are deployed. Inspection data like ingredient, moisture and dust content and heavy metal residual, and solvents are documented completely and in detail.
Pharmaceutical Intermediate Specifications
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Product name |
5-Chlorosalicylaldehyde |
|
Cas |
635-93-8 |
|
Molecular Formula |
C7H5ClO2 |
|
Molar Mass |
156.57 |
|
Density |
1.2683 (rough estimate) |
|
Melting Point |
100-102°C(lit.) |
|
Boling Point |
217.69°C (rough estimate) |
|
Flash Point |
92.2°C |
|
Vapor Presure |
0.0477mmHg at 25°C |
|
Appearance |
White to yellowish crystalline powder |
|
Color |
White to very slightly yellow |
|
PKa |
7.73±0.18(Predicted) |
|
Storage Condition |
Keep in dark place,Sealed in dry,Room Temperature |
|
Sensitive |
Air Sensitive |
|
Refractive Index |
1.5812 (estimate) |
|
Physical and Chemical Properties |
White crystals. Melting point 99-100 °c. Soluble in alcohol, slightly soluble in water. |
|
Use |
Intermediates for organic synthesis such as pharmaceuticals, fragrances, and dyes |
Applications
Used as biochemical reagents, analytical reagents and complex indicator, colorimetric analysis and determination of ferric ions.
Determination of iron ore, coal char, and limestone as raw materials of steel.
Intermediate for the manufacture of surfactants.
Organic catalyst.
Grease additives.
Manufacturing process
Raw Material Selection
Start by selecting high-purity raw materials, such as starting chemicals and reagents.
Chemical Synthesis
Subject the raw materials to specific chemical reactions to synthesize the pharma intermediate.
Purification
After synthesis, purify the pharma intermediate to remove impurities, by-products, and unreacted materials.
Filtration
Filter the purified product to remove any remaining solid impurities, ensuring a high-purity final product.
Crystallization
Crystallize the pharma intermediate to obtain the desired solid form, suitable for further processing and application.
Drying
Dry the crystallized product to remove excess moisture, creating a stable, free-flowing powder. Paddle dryers often achieve the.
Milling
Mill the dried product to the desired particle size to meet specific application requirements.
Quality Control
lmplement rigorous quality control measures throughout the manufacturing process to ensure the final product meets industry standards for purity, particle size, and chemical composition.
Safety Considerations
Personal Protective Equipment(PPE)
Workers should wear appropriate PPE, including gloves, goggles, and respirators, when handling pharma intermediates to prevent skin contact and inhalation of dust.
Safe Storage
Store pharma intermediates in a cool, dry, and well-ventilated area, away from incompatible materials such as strong acids and oxidizing agents.
Spill and Disposal Procedures
lmplement spill response and disposal procedures to safely manage accidental releases of pharma intermediates. Dispose of waste products according to local environmental regulations.
We are Specialzed for the Service of
Strategic Planning and Custom Design of New Formulation for our partner in chemical industry.
Custom Manufacturing for Project Commercialization.
Develop existing Chinese products to comply with customer's special quality requirements.
Orders must be entered into our order entry system before they can be fulfilled. This procedure is called order processing. Order processing occurs within 1 business day of receipt. We will contact the customer immediately if an order cannot be processed due to incomplete or conflicting information provided on the order.
The UPS ground delivery option is available for addresses in the Continental USA for all orders. Transit time is 1 to 5 business days depending upon the distance from Essington, PA.
Our Certificates
FAQ
We're professional pharmaceutical intermediate manufacturers and suppliers in China, specialized in providing high quality customized service. If you're going to wholesale discount pharmaceutical and chemical raw materials, welcome to get free sample from our factory.
intermediates, 59-87-0, 5-Bromo-1-pentene