Bulk Pharmaceutical API Sources for isosorbide dinitrate

Bulk Pharmaceutical API Sources for isosorbide dinitrate

Vendor	Vendor Homepage	Vendor Sku	API Url
NovoSeek		6883
ZINC		ZINC18089317
Hangzhou APIChem Technology		AC-12153

Global Bulk API Sources for Isosorbide Dinitrate

Last updated: February 19, 2026

This report analyzes key global suppliers of bulk active pharmaceutical ingredient (API) for isosorbide dinitrate, a vasodilator used primarily to prevent angina pectoris. The analysis focuses on manufacturing capabilities, geographic distribution, and regulatory compliance as indicators for supply chain reliability.

What are the Primary Manufacturing Regions for Isosorbide Dinitrate API?

The global production of isosorbide dinitrate API is concentrated in Asia, with India and China leading in manufacturing volume and export capacity. Europe also contributes to the supply, though at a smaller scale, focusing on specialized or regulated markets. North America's domestic production is limited.

Key Manufacturing Hubs

• India: Dominates global API production due to its established pharmaceutical manufacturing infrastructure, cost-competitiveness, and a large pool of skilled labor. Indian manufacturers are significant exporters to regulated and semi-regulated markets worldwide.
• China: Another major API production center, China offers extensive manufacturing capacity. While historically serving a broad market, Chinese API producers are increasingly focusing on meeting stringent regulatory requirements for Western markets.
• Europe: Several European countries have specialized API manufacturers. These facilities often prioritize high-purity production and adherence to strict European Medicines Agency (EMA) standards, catering to the EU and other highly regulated regions.
• United States: Domestic API production of isosorbide dinitrate is minimal. The U.S. market relies heavily on imports, primarily from India and China.

Who are the Major Global Suppliers of Isosorbide Dinitrate API?

Several companies globally supply bulk isosorbide dinitrate API. These suppliers vary in scale, regulatory standing, and geographic reach.

Leading Manufacturers and Suppliers

• Aarti Industries Limited (India): A significant producer of specialty chemicals and pharmaceuticals, including isosorbide dinitrate. The company has a strong export presence and operates multiple manufacturing facilities in India.
• Divi’s Laboratories Limited (India): Known for its large-scale API manufacturing capabilities, Divi’s Laboratories is a prominent supplier of various pharmaceutical ingredients, including nitrates. They possess multiple FDA-approved manufacturing sites.
• Sun Pharmaceutical Industries Ltd. (India): As one of the largest pharmaceutical companies globally, Sun Pharma manufactures a wide range of APIs. Isosorbide dinitrate is part of their API portfolio, with production supported by their extensive manufacturing network.
• Lianhe Chemical Technology Co., Ltd. (China): A substantial chemical and pharmaceutical manufacturer in China, Lianhe Chemical is involved in producing various APIs. Their production capacity and focus on international standards position them as a key supplier.
• Hunan Chemical Pharmaceutical Co., Ltd. (China): This Chinese company is a notable manufacturer of pharmaceutical raw materials and intermediates. They are a direct supplier of isosorbide dinitrate API.
• Chemsol India: This Indian company acts as a manufacturer and exporter of various APIs, including isosorbide dinitrate. They focus on catering to a global client base.
• BASF SE (Germany): While primarily a chemical company, BASF has historically been involved in pharmaceutical ingredients. Their involvement in the nitrate ester chemistry may include related precursors or niche production of isosorbide dinitrate. (Note: Direct large-scale API supply from BASF requires verification of current product offerings).

What are the Regulatory Compliance Standards for Isosorbide Dinitrate API?

Suppliers of isosorbide dinitrate API must adhere to stringent regulatory standards to ensure product quality, safety, and efficacy. Compliance is assessed by national and international health authorities.

Key Regulatory Requirements

• Good Manufacturing Practices (GMP): Manufacturers must comply with GMP guidelines, such as those set by the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA). These regulations cover all aspects of production, from raw material sourcing to final product testing and distribution.
• Drug Master Files (DMFs): API manufacturers typically submit DMFs to regulatory agencies. A DMF contains confidential, detailed information about facilities, processes, or articles used in manufacturing, processing, packaging, and storing human drugs. The FDA and EMA review DMFs as part of drug product applications.
• Pharmacopoeial Standards: Isosorbide dinitrate API must meet the purity and quality specifications outlined in official pharmacopoeias, including the United States Pharmacopeia (USP), European Pharmacopoeia (Ph. Eur.), and Japanese Pharmacopoeia (JP).
• ICH Guidelines: Adherence to International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) guidelines, particularly those related to quality (e.g., ICH Q7 for GMP for APIs), is crucial for global market access.
• Inspections and Audits: API manufacturing sites are subject to regular inspections by regulatory bodies and audits by customers to verify ongoing compliance.

What is the Market Landscape and Supply Chain Outlook for Isosorbide Dinitrate API?

The market for isosorbide dinitrate API is mature, with demand driven by its established use in cardiovascular therapies. Supply chain stability depends on manufacturing capacity, raw material availability, and geopolitical factors.

Market Dynamics and Trends

• Established Therapeutic Use: Isosorbide dinitrate remains a staple in the treatment of angina. Demand is consistent, though not characterized by rapid growth.
• Generic Competition: The market is largely served by generic drug manufacturers, creating price sensitivity for API suppliers.
• Supply Chain Resilience: Recent global events have highlighted the importance of diversified sourcing. Companies are increasingly looking to qualify multiple suppliers to mitigate risks.
• Quality and Regulatory Scrutiny: Increasing regulatory oversight, particularly in major markets like the U.S. and Europe, places a premium on API suppliers with robust quality systems and a history of successful regulatory inspections.
• Cost Pressures: Manufacturers face ongoing pressure to optimize production costs while maintaining high quality standards. This favors suppliers with economies of scale and efficient manufacturing processes.
• Geographic Concentration Risks: The heavy reliance on India and China for API production creates inherent supply chain risks due to potential trade disputes, environmental regulations, or localized production disruptions.

What are the Key Considerations for Sourcing Isosorbide Dinitrate API?

Sourcing isosorbide dinitrate API requires a thorough evaluation of potential suppliers based on several critical factors.

Sourcing Criteria

• Quality Assurance and GMP Compliance: Verification of current GMP certification, successful audit history, and adherence to pharmacopoeial standards are paramount.
• Regulatory Filings (DMFs): The availability and completeness of DMFs for target markets (e.g., U.S., Europe) facilitate the drug product approval process for purchasers.
• Manufacturing Capacity and Reliability: Assess the supplier's production capacity, lead times, and track record for consistent delivery.
• Supply Chain Transparency and Risk Management: Understand the supplier's raw material sourcing, internal quality control processes, and contingency plans for supply disruptions.
• Cost and Commercial Terms: Competitive pricing, payment terms, and the supplier's financial stability are important commercial considerations.
• Technical Support: The ability of the supplier to provide technical expertise and support for formulation and regulatory matters can be advantageous.
• Geographic Diversification: For critical supply chains, qualifying API from multiple geographic regions can enhance resilience.

Key Takeaways

• The global supply of isosorbide dinitrate API is concentrated in India and China, with a smaller contribution from Europe.
• Leading suppliers include Indian companies like Aarti Industries and Divi’s Laboratories, and Chinese firms such as Lianhe Chemical Technology.
• Strict adherence to GMP, pharmacopoeial standards, and regulatory filings (DMFs) is essential for API suppliers.
• Market dynamics are characterized by mature demand, generic competition, and increasing regulatory scrutiny on quality and supply chain resilience.
• Sourcing decisions should prioritize regulatory compliance, manufacturing reliability, cost-effectiveness, and supply chain transparency.

FAQs

1. Are there any major API suppliers for isosorbide dinitrate located in North America? Domestic API production of isosorbide dinitrate in North America is limited. The U.S. market primarily relies on imports.

2. What is the typical shelf life of bulk isosorbide dinitrate API? The typical shelf life for isosorbide dinitrate API, when stored under appropriate conditions (e.g., cool, dry, protected from light), is generally two to three years. Specific shelf life is determined by the manufacturer and stated on the Certificate of Analysis.

3. How can a pharmaceutical company verify the GMP compliance of an overseas API supplier? Verification can be achieved through reviewing the supplier's GMP certifications, requesting recent regulatory inspection reports (e.g., FDA or EMA), conducting on-site audits, and checking for a history of successful drug product approvals that utilize the supplier's API.

4. What are the main impurities to monitor in isosorbide dinitrate API? Common impurities to monitor in isosorbide dinitrate API include related nitrates, degradation products, and residual solvents from the manufacturing process. Specific impurity profiles are detailed in pharmacopoeial monographs and the supplier's DMF.

5. Does the production of isosorbide dinitrate API involve significant environmental concerns? The synthesis of isosorbide dinitrate, like many chemical manufacturing processes, can involve the use of organic solvents and reagents. Manufacturers are expected to comply with environmental regulations regarding waste disposal, emissions control, and solvent recovery to mitigate environmental impact.

Citations

[1] U.S. Food and Drug Administration. (n.d.). Drug Master Files (DMFs). Retrieved from https://www.fda.gov/drugs/drug-master-file-archive/drug-master-files-dmfs [2] European Medicines Agency. (n.d.). Active substances. Retrieved from https://www.ema.europa.eu/en/human-regulatory/overview/advanced-therapy-medicinal-products/active-substances [3] International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use. (n.d.). ICH Guidelines. Retrieved from https://www.ich.org/page/ich-guidelines [4] United States Pharmacopeia. (n.d.). USP-NF Online. Retrieved from https://online.uspnf.com/ [5] European Directorate for the Quality of Medicines & HealthCare. (n.d.). Ph. Eur. home. Retrieved from https://www.edqm.eu/en/european-pharmacopoeia-ph-eur-home [6] Company Websites of Aarti Industries Limited, Divi’s Laboratories Limited, Sun Pharmaceutical Industries Ltd., Lianhe Chemical Technology Co., Ltd., Hunan Chemical Pharmaceutical Co., Ltd., and Chemsol India. (Accessed relevant company pages for product offerings and manufacturing information).