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Hangzhou Yihe Biomedical Technology Co., Ltd.

  • Melatonin CAS 73-31-4
  • video

Melatonin CAS 73-31-4

Application: health care products
  • Yihe Biomedical
  • China


Product Introduction



CAS‍‌‍‍‌ number: 73-31-4


Major functions

Yihe Biomedical sells a batch of Melatonin of 99% purity, CAS number 73-31-4, for sale. Though mainly they make health products and their main clients normally ask for a sleep-related ingredient with a correct assay, stable batch documentation, and raw material identity. Melatonin has been linked to several health benefits including anti-aging, tumor prevention, sleep promotion, and immune system regulation. However, according to Yihe Biomedical product disclosure, among these immune regulation is the least directly supported by them. Indeed, sleep promotion remains the chief characteristic of the many formulas that carry melatonin as the main component.

Reducing the packing is mainly done for a 99% specification melatonin, especially from dosage control, batch comparison, and formula consistency angles.

For the reason that, formulators can incorporate melatonin in various shipment forms of finished products: capsules, tablets, granules, powder blends, or any kind of layout of health care products as the typical examples. Therefore, buying in bulk is a very efficient way to benefit without interruption and at the same time, prevent stock depletion.


Use Target

Melatonin is most often incorporated in health care products. By the way, it has very limited other uses. Therefore, the samples of sleep-supporting formulas, nighttime wellness products, and supplements oriented to relaxation are shown below. Since Melatonin is a dose-specific product, the consumers, in the first place, should choose the desired dosage forms and respective local compliance requirements for production before commercial launch. Besides content uniformity, other aspects such as excipient compatibility, capsule or tablet performance, packaging protection, and shelf-life behavior are the ones that require attention during the testing phase.


Company's advantages

Their head office is situated in Hangzhou, a city where the company operation chiefly concentrated on the customer-oriented, quotation, document management, and shipment follow-up processes.

In 2019, their Nanning factory began operating. Their plant measures 3300㎡ in production area and their seven extraction tanks each 6 tons can/could annually process more than 2000 tons of plant raw materials.

The sound quality control system comprises raw material traceability, incoming goods check, finished products testing, sample retention, and batch number tracking

Batches get linked through production records, testing documents, and -logistics information. Besides, the company also possesses certificates like ISO 9001:2015, HALAL, Kosher, and organic-related certification ‍‌‍‍‌resources.


Why Choose Us


Pre-Sales‍‌‍‍‌‍‌‍‍‌ and After-Sales Support

Pre-Sales Support

1. Prompt Response to Queries

We respond to queries in 2 hours and send first quotes and specs within 24 hours.

2. Sampling Services

We give you the samples for FREE by courier. We enclose the Certificate of Analysis (COA) and usage instruction with the samples.

3. Technical Advisory

We explain to you the regulations of your markets (such as U.S. Dietary Supplement cGMP, EFSA standards).

4. Custom Sample Production

Based on your recipe, we carry out a small batch trial at lab, provide the sample delivery within 3–5 business days.

After-Sales Support

1. Use Guidance

We provide product solubility, incompatibility & contraindications, recommended dosage, storage conditions, etc. technical data sheets (TDS).

2. Customer Complaint Management

If the quality is not satisfactory, a team will be created within 48 hours to offer replacement or refund for free, and the Quality Director will issue a corrective action report.

3. Continuous Focus on Customer Satisfaction

Every quarter, we take the initiative to contact our customers and offer them those documents that are updated CoAs, literature, and application research materials related to products from the same batch.

4. Stocking Plan for the Long Run

We stock a safety inventory (≥3 months’ typical usage) of top-selling products to avoid production downtime.


FAQ

Q1: What product is registered under the CAS 73-31-4?

A: It is melatonin.

Q2: What is the company’s product quality rating?

A: Yihe Biomedical manufactures melatonin with 99% purity.

Q3: Which sales channel will the company consider as main sector?

A: The company sees healthcare products as the largest consumer goods.

Q4: Which product features are claimed by the company in the product catalog?

A: The product catalog shows that the product is potential anti-aging, anti-tumor, sleep aid, and immune function regulator.

Q5: What procedures does the company advise the clients to follow before doing the final purchase?

A: Customers are advised to go through assay, product appearance check, blend uniformity test, compatibility, dosage form suitability and storage stability tests prior to placing the full order.


Shipping Details

As for the packing of melatonin, it will be done in 3 working days after receiving order confirmation if materials are available in the warehouse. If it is customization or non-standard packaging, production will be expected to be 15-25 working days.

A piece of standard packing for melatonin is a 25 kg drum, but 1 kg trial packs are also used for sample assessment. Yihe Biomedical shall be opened to negotiating the customers’ inventory of major products, which will help them in steadily resisting procurement timelines for long-term ‍‌‍‍‌orders.


CompanyHangzhou Yihe Biomedical Technology Co., Ltd.
Business LayoutHangzhou trade office for international business, customer communication, and logistics coordination; Nanning factory for production and quality control
Factory LocationNanning, Guangxi, close to botanical raw material sources
Factory OperationNanning factory officially started production in 2019
Factory AreaAbout 3,300 m²
Extraction Capacity7 extraction tanks, 6 tons each
Annual Raw Material CapacityOver 2,000 tons of botanical raw materials per year
Product FormsSingle compounds, standardized extracts, ratio extracts, compound granules, and customized grades
Quality DocumentsCOA, TDS, MSDS/SDS, specification sheet; Halal, Kosher, and organic documents available for selected products
Testing CapabilityHPLC, GC/MS, ICP-MS, GC-ECD / GC-MS, headspace gas chromatography, moisture, ash, and particle size testing
Sample SupportSamples can be supplied with sample COA and basic product information
MOQ ReferenceRegular extracts: 25 kg/drum; 1 kg trial pack available; customized products can be discussed from around 5 kg depending on process
Lead Time ReferenceStock products: around 3 working days; customized production: around 15–25 working days
TraceabilityEach batch has a unique batch number linked to raw materials, production records, test reports, and logistics records
Quality ResponseQuality complaints are handled within 48 hours with internal investigation and corrective action when needed


Melatonin


  • Q1: Are you a factory or a trading company?

    We are a professional manufacturer integrating R&D, production, and sales. We control quality directly from the source. You are welcome to visit our factory.
  • Q2: What international certifications do you have?

    Our factory is ISO 9001 certified. Our core products comply with USP/EP standards. For most botanical extracts, we can also provide HALAL and KOSHER certifications.
  • Q3: What is the difference between ratio extracts and standardized extracts?

    Ratio extracts (such as 10:1) mean that 10 kg of raw material is used to produce 1 kg of extract, but the content of active compounds may vary. Standardized extracts, on the other hand, guarantee a specific percentage of active ingredients (such as 5% flavonoids), ensuring consistent efficacy from batch to batch. For pharmaceutical applications, we recommend standardized extracts.
  • Q4: Can you provide a Certificate of Analysis before shipment?

    Of course. Every batch is tested by our in-house quality control laboratory. We provide a detailed Certificate of Analysis (COA), including heavy metals, microbial limits, and active ingredient content. Third-party test reports (such as SGS or Eurofins) can also be provided upon request.
  • Q5: What is your minimum order quantity (MOQ)?

    For high-purity pharmaceutical raw materials, the MOQ is usually [e.g. 25 kg/drum]. For popular botanical extracts, we keep stock available, so sample orders or small trial orders (1–5 kg) are acceptable.
  • Q6: Can these ingredients be legally imported into the USA / EU / Japan?

    Our products comply with most international regulations. Please let us know your target market, and we will provide a regulatory assessment accordingly.
  • Q7: How do you ensure product stability during long-distance sea transportation?

    We use food-grade fiber drums with double-layer sealed inner bags. We can also provide stability data to support your shelf-life claims.

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