Keywords

• Vitamin B2-Riboflavin(Vitamin B2)USP/BP/EP
• VB2 (Riboflavin)
• (-)-Riboflavin

Quick Details

• ProName: EAST CHEM Riboflavin
• CasNo: 83-88-5
• Molecular Formula: C17H20N4O6
• Appearance: white powder
• Application: As an essential B-vitamin, supports en...
• DeliveryTime: in stock
• PackAge: 25kg/drum
• Port: Shanghai/Qingdao/Tianjin
• ProductionCapacity: 50 Metric Ton/Month
• Purity: 99%
• Storage: Store in a light-resistant, well-seale...
• Transportation: By sea/air/courier
• LimitNum: 25 Kilogram
• Heavy Metal: Lead
• Limited Quantity: ≤1.0ppm
• Valid Period: 2years
• Assay: 98.0 - 102.0%
• Specific rotation: - 115°~ - 135°

Superiority

1. Product Identification

• Product Name: Vitamin B2; Riboflavin
• CAS No.: 83-88-5
• Molecular Formula: C17H20N4O6
• Molecular Weight: 376.36 g/mol
• Appearance: Orange-yellow, crystalline powder; odorless or almost odorless

2. Specifications (USP Standard)

3. Applications

• Pharmaceuticals: Used in oral formulations (tablets, capsules, syrups) to prevent or treat riboflavin deficiency (e.g., cheilosis, glossitis, keratitis).
• Food & Beverages: Added as a nutritional fortifier to cereals, dairy products, infant formulas, and functional drinks; also used as a natural yellow food colorant.
• Feed: Incorporated into animal feed (poultry, livestock, aquaculture) to support growth, maintain normal skin/mucous membrane health, and enhance reproductive performance.

4. Storage & Handling

• Store in a light-resistant, tightly sealed container in a cool, dry place (temperature ≤ 25°C, relative humidity ≤ 60%); avoid exposure to direct sunlight.
• Do not mix with strong acids, alkalis, or oxidizing agents to prevent decomposition.
• Shelf life: 24 months from the date of manufacture when stored in accordance with the above conditions.

5. Safety & Handling

• Flammable Liquids: Category 3
• Skin Irritation: Category 2
• Eye Irritation: Category 2
• Specific Target Organ Toxicity (Single Exposure): Category 3 (Respiratory system)

• Inhalation: Remove to fresh air; keep the airway unobstructed. If breathing is difficult, give oxygen and seek medical attention.
• Skin Contact: Immediately rinse with plenty of running water for 15+ minutes; remove contaminated clothing and wash before reuse.
• Eye Contact: Hold eyelids open and rinse thoroughly with water for 15+ minutes; do not rub eyes, seek medical help promptly.
• Ingestion: Do not induce vomiting; give large amounts of water to dilute and consult a physician immediately.

• Wear appropriate PPE: safety goggles, chemical-resistant gloves (nitrile or neoprene), protective clothing, and respiratory protection (in poorly ventilated areas).
• Operate in a well-ventilated fume hood or open area; avoid vapor accumulation.
• No smoking or use of open flames near the product; use explosion-proof electrical equipment.

6. Quality Assurance

• East Chemsources adheres to ISO 9001 quality management system, ensuring all products meet the above specifications through strict incoming inspection, in-process control, and final testing.
• Each batch is accompanied by a Certificate of Analysis (COA) for traceability and quality verification.
• Factory-direct supply eliminates intermediate distributors, offering competitive pricing and flexible delivery terms.

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• Competitive offers with standard high quality or customize
  2. Available customizing blending of above 2 single products
  3. Prompt delivery within 2-3 weeks(1 weeks is available for ready stock)
  4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 years
  5. Respond to inquires within 1 hour and 24hours' online service
  6. Free sample and correct shipping documents dispatched according to regulations of different countries
  7. Advise price trend accurately and help clients to make order decision
  8. Weekly update offers provided to every potential client

• Warehouse - Loading onto vehicles - Transportation

  

  

  Manufacturing Facilities

  

  

  Chemical industrial park

  

Details

Founded in 2008, we are a fully integrated enterprise specializing in the research, development and manufacturing of chemical products. Over the past 15 years+, leveraging continuous technological innovation and strategic talent acquisition, we have experienced robust growth and emerged as a modern, internationalized and diversified chemical conglomerate. Presently, our product portfolio spans four core categories – food additives, pharmaceutical raw materials, specialty chemicals and personal care ingredients – with a global footprint covering more than 80 countries and regions worldwide.

Since inception, we have steadfastly upheld our corporate tenet: "Integrity First, Quality Paramount". We are dedicated to fostering a customer-centric service philosophy, anchored in meeting client requirements, driving customer value creation and fulfilling client objectives. Guided by a forward-looking perspective and collaborative mindset, we strive to deliver sound financial returns, optimize market operations and build a distinguished, industry-leading brand.

Regardless of your project scale or scope of service requirements – spanning a single business segment, multiple domains or our full suite of capabilities – our unwavering commitment to delivering premium-quality outcomes remains consistent. We eagerly anticipate forging mutually beneficial partnerships with you

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