China Customized API Manufacturers Suppliers Factory - Wholesale Service

Your Professional API Supplier

TNJONE is a professional manufacturer of pharmaceutical raw materials, APIs, peptides, and intermediates with over 10 years of industry experience. We operate a GMP-compliant factory in Shaanxi, China, serving pharmaceutical, research, and healthcare applications.

Strict Quality Control

Professional QA and QC teams ensure stable purity, reliable performance, and full production traceability.

Custom Manufacturing

Advanced production and testing equipment support flexible OEM/ODM solutions for different product requirements.

Reliable Supply & Delivery

Efficient production management and professional logistics help ensure stable supply and safe global transportation.

Lidocaine Hydrochloride Powder CAS 6108-05-0
CAS Number: 6108-05-0Chemical Name: 2-(Diethylamino)-N-(2,6-dimethylphenyl)acetamide hydrochlorideMolecular Formula: C14H23ClN2OMolecular Weight: 270.8 g/molAppearance: White to off-white crystalline
Minoxidil Powder CAS 38304-91-5
Chemical Name: 2,4-Pyrimidinediamine, 6-(1-piperidinyl)-, 3-oxideCAS Number: 38304-91-5Molecular Formula: C9H15N5OMolecular Weight: 209.25 g/molAppearance: White to off-white crystalline
Heparin Sodium Powder CAS 9041-08-1
Product Name: Heparin sodium PowderAppearance: White to off-white powderCAS No: 9041-08-1Molecular Formula: (C12H19NS2Na3)20Solubility: ≥50 mg/mL (25℃ aqueous solution)Loss on drying: ≤5.0%
L-carnitine Powder CAS 541-15-1
Chemical Name: L-Carnitine (L-3-hydroxytrimethylammoniobutanoate)CAS Number: 541-15-1Molecular Formula: C7H15NO3Molecular Weight : 161.2 g/molPurity: ≥99.8% (Food/Pharma Grade)Physical Form: White
Shikimic Acid Powder CAS 138-59-0
CAS: 138-59-0Appearance: White or almost white crystalline powderSpecification: ≥99% (HPLC)Molecular Formula: C₇H₁₀O₅Molecular Weight: 174.15 g/molShelf Life: 24-36 monthsStock: Adequate
Fusidic Acid Powder CAS 6990-06-3
CAS: 6990-06-3Appearance: White or almost white crystalline powderSpecification: ≥98.0% (on dried basis, by HPLC)Molecular Formula: C₃₁H₄₈O₆Molecular Weight: 516.71 g/molShelf Life: 24 months(Proper
Diclofenac Sodium Powder CAS 15307-79-6
CAS: 15307-79-6Appearance: White or off-white crystalline powderSpecification: ≥99% (by HPLC)Molecular Formula: C₁₄H₁₀Cl₂NNaO₂Molecular Weight: 318.13 g/molShelf Life: 36 months(Proper Storage)Stock:
Diphenhydramine Hydrochloride Powder CAS 147-24-0
CAS: 147-24-0Appearance: White or almost white crystalline powderSpecification: ≥99% (by HPLC)Molecular Formula: C₁₇H₂₂ClNOMolecular Weight: 291.82 g/molShelf Life: 36 months(Proper Storage)Stock:
Procaine Hydrochloride Powder CAS 1951-5-8
CAS: 1951-5-8Appearance: White crystalline powder or colorless crystals.Specification: ≥99.0%Molecular Formula: C₁₃H₂₀N₂O₂ • HClMolecular Weight: 272.77Shelf Life: 2 Years(Proper Storage)Stock:
Vonoprazan Fumarate Powder CAS 1260141-27-2
CAS: 1260141-27-2Appearance: White crystalline powderSpecification: ≥99.0%Molecular Formula: C21H20FN3O6SMolecular Weight: 461.46Shelf Life: 2 Years(Proper Storage)Stock: Adequate StockCertificate:
Empagliflozin Powder CAS 864070-44-0
Product Name：Empagliflozin Powder API Name：Empagliflozin API CAS Number：864070-44-0 Molecular Formula：C23H27ClO7 Molecular Weight：450.91 Appearance：White to off-white crystalline powder
Terbinafine Hydrochloride Powder CAS 78628-80-5
Product Name: Terbinafine Hydrochloride Powder CAS Number: 78628-80-5 Molecular Formula: C₂₁H₂₆ClN · HCl Molecular Weight: ~ 327.90 g/mol Appearance: White to off-white crystalline powder

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We provide more than 2,000 active pharmaceutical ingredients (APIs), covering diverse therapeutic categories and supporting global pharmaceutical development.

Specification

Item	Specification	Test Method
Product Name	Minoxidil Powder (2,4-Pyrimidinediamine, 6-(1-piperidinyl)-, 3-oxide)	-
CAS Number	38304-91-5
Molecular Formula	C9H15N5O
Molecular Weight	209.25
Appearance	White to off-white crystalline powder	Visual Inspection
Purity (HPLC)	99.76%	HPLC
Total Impurity Content	≤1.5%	USP
Individual Impurity	≤0.5%	HPLC
Loss on Drying	≤0.5%	USP 50°C, 3hrs, ≤5mmHg)
Ash Content	≤0.5%	USP Residue on Ignition
Heavy Metal Limits	Lead (Pb): ≤20pp msenic (As): ≤10pp mury (Hg): ≤1ppm Cd): ≤2ppm	ICP-MS (USP <231> Method II)
Residual Solvents	Isopropanol: ≤500ppm Piperidine: ≤100ppm Other solvents: ≤50ppm	Gas Chromatography (USP 7>)
Melting Point	248–252 °C	Differential Scanning Calorimetry (DSC)
Solubility	Water: 1mg/mL (50°C, ultrasonic) Ethanol: 7.14mg/mL (ultrasonic) MSO: 5mg/mL (60°C, warming)	Solubility Test (USP
pH Value	5.8	PH Meter (ISO 787-9)

Different Functions of API

01.

Fillers

Also known as diluents, provide bulk to the formulation, especially when the API is in small quantities. They also enhance stability and facilitate uniform distribution of the API. One example of a filler is lactose.

02.

Binders

Crucial in tablet and capsule formulations as they hold the powder together, providing cohesiveness. It improves the powder flow properties and controls the granule size and hardness. Examples of binders are povidone and methylcellulose.

03.

Disintegrants

All drugs contain this component, as it is essential for proper drug release. It promotes rapid dissolution, increases the surface area so the absorption is enhanced, and counteracts the effect of the binders to improve drug bioavailability.

04.

Lubricants

Although their role is more limited, they take part in the dissolution of the drug when interacting with gastrointestinal fluids. Particularly hydrophobic ones, such as magnesium stearate, can form a hydrophobic layer around the drug particles so the release of the API is slowed down for better absorption.

Lidocaine Hydrochloride Powder CAS 6108-05-0

Types of API

Synthetic APIs
Chemically synthesized in laboratories. Example: Aspirin.

Biological APIs (Biologics)
Derived from living organisms such as cells or tissues. Example: Insulin.

Natural APIs
Extracted directly from plants, minerals, or animals. Example: Morphine from the opium poppy.

Semi-synthetic APIs
Partially derived from natural sources and then chemically modified. Example: certain antibiotics.

High-potency APIs (HPAPIs)
Extremely effective in small doses, often used in oncology treatments.

Applications of API

Pain Relief and Inflammation

APIs like ibuprofen and diclofenac help manage pain and swelling.

Heart and Blood Pressure Management

APIs in statins and beta-blockers keep cardiovascular health in check.

Anti-Infective Treatments

Antibiotic APIs save lives daily by fighting bacterial and viral infections.

Chronic Illness Support

APIs for diabetes, asthma, and arthritis help people lead normal lives.

Smoking Cessation

Its nicotine-based APIs are used in gums, patches, and lozenges that help people quit smoking safely.

Key Differences Between API and Excipients

Aspect	API (Active Pharmaceutical Ingredient)	Excipient
Function	Produces the intended therapeutic effect	Supports drug formulation, stability, and absorption
Presence	Found in small, precise amounts	Often makes up the bulk of the drug
Examples	Paracetamol (pain relief), Atorvastatin (cholesterol-lowering)	Fillers (lactose), Binders (starch), Preservatives
Regulation	Highly regulated for quality and potency	Follows safety guidelines but with fewer restrictions

Precautions for Storing API

Temperature
Different APIs require specific ranges, such as Controlled Room Temperature (20°Cto 25°C), Refrigerated (2°C to 8"C), or Freezer(-25°C to -10°C).

Humidity
High humidity can cause hydrolysis, rendering an API toxic or ineffective. Facilities use desiccators and monitoring devices to keep areas dry.

Light Protection
Many APIs are photosensitive. These should be stored in opaque or amber containers to prevent UV-induced photodegradation.

Airtight Seals
Containers should be tightly sealed to prevent oxidation. For oxygen-sensitive materials, containers may be flushed with nitrogen before sealing.

Ordering Process

Inquiry

Quotation

Communication

Order confirming

Deposit payment

Production

Testing and debugging

Balance payment

Packing

Delivery

Customer receiving

After service

Packaging and Shipping

Packaging	Double-layer pharmaceutical-grade bags or fiber drums
Shipping	We commonly use international express services such as DHL, FedEx, and UPS.

FAQ

Q: What is API?

A: API stands for Active Pharmaceutical Ingredient. It refers to any single substance or mixture used in the manufacture of a drug as the active ingredient in various dosage forms.

Q: What forms do APIs typically come in?

A: APIs typically come in solid, liquid, or semi-solid forms and must meet drug quality standards and specifications.

Q: Can APIs be derived from natural sources?

A: Yes, APIs can be derived from natural sources such as plants or animals. For example, some antibiotics are derived from fungi.

Q: What is the importance of API stability?

A: API stability is crucial as it ensures that the drug remains effective and safe over its shelf life. Stability testing evaluates how the API changes over time under different conditions.

Q: How are APIs tested for quality?

A: APIs undergo extensive testing to ensure their quality, including purity testing, potency testing, impurity profiling, and stability testing.

Q: Can APIs be used directly by patients?

A: No, APIs cannot be used directly by patients. They must be formulated into a dosage form such as a tablet, capsule, or injection before they can be administered.

As one of the most professional API manufacturers and suppliers in China, we also support customized service. Please feel free to buy bulk high quality API in stock here from our factory. For price consultation, contact us.

Terbinafine Hydrochloride Powder, 541-15-1, Capecitabine API Powder