Bulk Bilirubin Powder Manufacturer in China
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Buck Bilirubin Powder
| Product Name | Bilirubin Powder |
| Other Names | deep red bile, Bile Pigment, Hematoidin, Hemetoidin, Bilirubin IX-alpha, 3,3′-(2,17-Diethenyl-3,7,13,18-tetramethyl-1,19-dioxo-10,19,21,22,23,24-hexahydro-1H-biline-8,12-diyl)dipropanoic acid |
| CAS number | 635-65-4 |
| Molecular Formula | C33H36N4O6 |
| Molecular Weight | 584.67 g/mol |
| Appearance | Orange to Brown-Red Crystalline Powder |
| Testing Standard | Enterprise Standard |
| Applications | animal feed, supplements |
| Manufacturing Capability | 100 tons annually |
| OEM services | Custom formulation, capsules, tablets, blends, contract manufacturing, softgels |
| Bulk Packaging | 1kg/Aluminum bag |
Henan Unicorns Biotechnology Co., Ltd. supplies bulk Bilirubin Powder for ingredient distributors, pharmaceutical raw material buyers, diagnostic reagent companies, cosmetic ingredient suppliers, chemical traders, and research material distributors. Our factory supports stable production, export documentation, custom specifications, and bulk packaging for global B2B orders.
Bilirubin is not positioned as a normal dietary supplement ingredient. It is a specialty bile pigment raw material mainly used in artificial bezoar production, analytical chemistry, biochemical research, diagnostic reagent development, cosmetic research, and pharmaceutical preparation. Unicorns Biotechnology can also supply related Glandular Extracts and Its Derivatives, including Ox Bile Extract Powder, TUDCA Powder, Cholic Acid Powder, Bovine Gallbladder Powder, and custom bile-derived raw materials.
What Is Bilirubin?
Bilirubin is an orange to brick-red bile pigment. It is one of the main pigments found in animal bile and is also related to the natural breakdown of hemoglobin. Chemically, it is a chain-like tetrapyrrole compound with four pyrrole rings connected by methylene groups.
Bilirubin is also known as Bilirubin IX-alpha, Bilirubin Ixα, bile pigment, hematoidin, and 3,3′-(2,17-Diethenyl-3,7,13,18-tetramethyl-1,19-dioxo-10,19,21,22,23,24-hexahydro-1H-biline-8,12-diyl)dipropanoic acid. Its CAS number is 635-65-4. The molecular formula is C33H36N4O6, and the molecular weight is 584.7.
In appearance, bilirubin is usually a light orange, orange-brown, or deep red-brown crystalline powder. It is insoluble in water, slightly soluble in ethanol and ether, and soluble in some organic solvents, acids, and alkaline solutions. In dry form, bilirubin is relatively stable. It should still be protected from light, heat, air, and strong oxidizing conditions.
Henan Unicorns Biotechnology supplies wholesale bulk Bilirubin Powder with custom specifications, private label support, OEM packaging, COA, MSDS, and export documents for qualified industrial buyers.
Bilirubin Sources and Related Forms
Bilirubin is mainly sourced from animal bile and bile-related raw materials. During processing, related bile components such as bile calcium salts and bile acids may also be separated. For commercial use, bilirubin is usually purified, crystallized, dried, and packed as a high-purity crystalline powder.
High-Purity Bilirubin
High-purity Bilirubin Powder is the main product form for artificial bezoar, biochemical research, diagnostic reagent development, and analytical applications. Unicorns Biotechnology can supply ≥99.0% assay material according to the attached specification.
Calcium Bilirubin
Calcium bilirubin, also written as calcium bilirubinate, is a calcium salt form related to bilirubin. It is often discussed in bile pigment chemistry, bile stone research, and artificial bezoar raw material systems.
Covalent Bilirubin
Covalent bilirubin refers to bilirubin bound through covalent linkage with proteins such as albumin or glycoproteins. It is known for better long-term stability compared with some free bilirubin forms. Buyers should confirm the exact form needed before placing an order.
Bilirubin Powder Specifications
Unicorns Biotechnology supplies high-purity Bilirubin Powder with ≥99.0% assay, orange to brown-red color, crystalline powder appearance, yellow solution color, turbidity ≤2.0 NTU, loss on drying ≤1.8%, and UV wavelength from 450 to 454 nm. Standard packaging is 1kg aluminum packaging, and bulk packing can be customized for wholesale orders. Each batch can be tested for identity, assay, moisture, heavy metals, residual solvents, and other buyer-required items. Third-party lab testing can be arranged for importers, distributors, pharmaceutical raw material buyers, and reagent companies.
| Item | Specification |
|---|---|
| Product Name | Bilirubin Powder |
| CAS No. | 635-65-4 |
| Molecular Formula | C33H36N4O6 |
| Molecular Weight | 584.7 |
| Assay | ≥99.0% |
| Color | Orange to Brown-Red |
| Appearance | Crystalline Powder |
| Color of Solution | Yellow |
| Turbidity | ≤2.0 NTU |
| Loss on Drying | ≤1.8% |
| UV Wavelength | 450 to 454 nm |
| Solubility | Insoluble in water, soluble in selected organic solvents, acids, and bases |
| Standard Packaging | 1kg/Aluminum |
| Bulk Packaging | Custom aluminum bag, bottle, or drum packaging |
| Country of Origin | China |
| Documents | COA, MSDS, specification, origin statement, test reports on request |
Key Technical Features of Bilirubin Powder
Bilirubin Powder is valued for its high pigment strength, bile-derived identity, and clear analytical profile. It is not used like a common nutrition powder. Buyers mainly choose it for controlled purity, stable color profile, and defined chemical identity.
High-Purity Bile Pigment
Bilirubin is the main active compound in this product. A ≥99.0% assay makes it suitable for buyers who need a cleaner raw material for research, analytical, or artificial bezoar applications.
Clear UV Identification
The attached specification gives a UV wavelength range of 450 to 454 nm. This helps buyers confirm identity and maintain consistent quality control from batch to batch.
Orange to Brown-Red Crystalline Form
The crystalline powder form gives buyers a more defined raw material than crude bile extracts. It is easier to test, pack, store, and use in controlled production.
Specialty Raw Material Use
Bilirubin is used in artificial bezoar, diagnostic reagent development, biochemical research, and selected pharmaceutical or cosmetic raw material systems. The final use depends on local laws and buyer approval.
Bilirubin Powder Manufacturing Process
Unicorns Biotechnology controls the manufacturing process from raw material selection to finished powder release. The general process includes animal bile source inspection, extraction, impurity removal, concentration, pH adjustment, purification, crystallization, drying, milling, sieving, testing, and final light-resistant packaging.
During production, the focus is purity, color, moisture control, and stability. The finished powder is packed in sealed aluminum packaging to reduce light and moisture exposure. Batch samples are tested before release, and COA, MSDS, specification sheets, and other documents can be prepared for export buyers.
Main Applications of Bilirubin Powder
Bulk Bilirubin Powder is mainly used by professional buyers, not direct retail consumers. Its main value is as a defined bile pigment raw material with high purity, clear chemical identity, and strong application potential in artificial bezoar, reagent, research, and specialty raw material fields.
Artificial Bezoar Raw Material
Diagnostic Reagent and Calibration Use
Biochemical and Analytical Research
Cosmetic, Pharmaceutical, and Chemical Raw Material Research
Bilirubin Powder vs Calcium Bilirubin vs Covalent Bilirubin
Different bilirubin-related materials are not the same. Buyers should confirm the exact product form before purchasing.
| Type | Main Feature | Common Use Direction |
| Bilirubin Powder | Free bilirubin, high-purity bile pigment | Artificial bezoar, research, diagnostic reagent, analytical use |
| Calcium Bilirubin | Calcium salt form related to bilirubin | Bile pigment chemistry, bile stone research, specialty raw material systems |
| Covalent Bilirubin | Bilirubin bound to protein or glycoprotein | Stability-focused research and selected artificial bezoar raw material systems |
For most buyers searching “bulk bilirubin powder,” the standard choice is high-purity bilirubin CAS 635-65-4. If you need calcium bilirubin or covalent bilirubin, please confirm the target specification, test method, and final application before ordering.
Where to Buy Bulk Bilirubin Powder?
Henan Unicorns Biotechnology Co., Ltd. is a China manufacturer and supplier of bulk Bilirubin Powder for artificial bezoar, diagnostic reagent, research, cosmetic, pharmaceutical, and chemical raw material buyers. We support wholesale price, free sample, custom specifications, OEM packaging, third-party testing, and full export document support.
| Advantage | What We Offer |
| China Factory Supply | Direct bulk supply from Henan Unicorns Biotechnology |
| High Purity | ≥99.0% assay available by batch |
| Custom Specification | Assay, particle size, packaging, and testing can be discussed |
| Strong Documentation | COA, MSDS, specification, origin statement, and test reports |
| Sample Support | Free sample available for qualified B2B buyers |
| Bulk Packaging | 1kg aluminum packaging and custom bulk packing |
| Third-Party Testing | Heavy metals, residual solvents, purity, and other tests on request |
| Export Service | Support for distributors, importers, factories, and raw material traders |
| Related Ingredients | Ox Bile Extract, TUDCA, Cholic Acid, bile-derived raw materials |
| OEM Support | Custom labels, packaging, and buyer-specific documents |
Contact Unicorns Biotechnology to request the latest Bilirubin Powder COA, wholesale price, sample policy, and export documents. Please share your target specification, order volume, application, destination country, and required test items, so our team can match the right batch for your project.
Frequently Asked Questions (FAQs)
Choosing the right Bilirubin Powder supplier starts with clear specifications, stable quality, and complete documents. This FAQ section answers common B2B questions about bilirubin purity, CAS number, applications, storage, packaging, samples, COA, MSDS, and export support, helping buyers confirm whether Unicorns Biotechnology can match their project requirements.
What is Bilirubin Powder used for?
Bilirubin Powder is used as a specialty raw material for artificial bezoar, diagnostic reagent development, calibration systems, biochemical research, analytical chemistry, and selected pharmaceutical, cosmetic, or chemical research applications.
What purity does Unicorns Biotechnology supply?
Unicorns Biotechnology can supply high-purity Bilirubin Powder with ≥99.0% assay. Custom specifications and third-party testing can be arranged based on buyer requirements.
Is Bilirubin Powder suitable for direct human consumption?
No. Bilirubin Powder should not be marketed as a normal dietary supplement ingredient or direct consumer product unless the buyer has confirmed local regulatory approval and final use requirements.
Can I get a free sample before bulk order?
Yes. Free samples are available for qualified B2B buyers. Please provide your company information, target use, required purity, destination country, and estimated order quantity.
What documents can you provide?
We can provide COA, MSDS, product specification, country of origin, packing list, commercial invoice, and other export documents. Heavy metal, residual solvent, microbiological, and third-party test reports can be arranged on request.
How should Bilirubin Powder be stored?
Store Bilirubin Powder in a tightly sealed, dry, and light-resistant container. Keep it away from sunlight, heat, moisture, oxidizing agents, and repeated air exposure. Low-temperature storage is recommended for long-term holding.
Can you arrange third-party testing before shipment?
Yes. Third-party testing can be arranged on request. Common test items include assay, identity, heavy metals, residual solvents, moisture, and microbiological indicators if required. Buyers can also nominate their preferred testing lab or confirm the needed test standard before placing an order.
Is Bilirubin Powder suitable for artificial bezoar production?
Bilirubin is an important raw material used in artificial bezoar production. Buyers in this field usually need high-purity material, stable color, clear assay results, and complete export documents. Unicorns Biotechnology can provide bulk Bilirubin Powder with batch-specific COA and custom packaging for qualified manufacturers.
Is Bilirubin Powder used for diagnostic reagent manufacturing?
Yes. Bilirubin Powder can be used in diagnostic reagent development, calibration materials, analytical testing, and biochemical research. Reagent companies often focus on purity, UV wavelength, solution color, turbidity, and batch consistency. Unicorns Biotechnology can support these quality requirements with batch testing and documentation.
Can Bilirubin Powder be used in cosmetic or pharmaceutical raw material research?
Bilirubin may be used as a specialty raw material in cosmetic, pharmaceutical, chemical, and biochemical research. Final application approval depends on local regulations and the buyer’s product category. Unicorns Biotechnology supplies Bilirubin Powder as a raw material for qualified industrial and research buyers, not as a finished consumer product.
Is Bilirubin Powder a dietary supplement ingredient?
No. Bilirubin Powder should not be promoted as a normal dietary supplement ingredient or direct-consumption product. It is better positioned for artificial bezoar, diagnostic reagent, biochemical research, pharmaceutical raw material research, cosmetic research, and chemical applications. Buyers should confirm local regulatory requirements before use.
What packaging options are available for Bilirubin Powder?
The standard packaging is 1kg aluminum packaging. For bulk orders, Unicorns Biotechnology can discuss custom aluminum bags, light-resistant containers, bottles, cartons, or drum packaging. Packaging can be adjusted based on order quantity, shipping method, storage conditions, and buyer handling requirements.
Can you customize labels or private packaging?
Yes. OEM packaging, custom labels, and buyer-specific packaging can be discussed for bulk Bilirubin Powder orders. Unicorns Biotechnology can support ingredient distributors, raw material traders, reagent suppliers, and contract manufacturers that need custom labels or neutral packaging for resale.
Why is light-resistant packaging important for Bilirubin Powder?
Bilirubin is sensitive to light and certain chemical conditions. Light-resistant packaging helps reduce quality loss during storage and transport. Aluminum packaging, amber containers, and sealed outer cartons can help protect the powder from light, moisture, and air exposure.
Can you supply Calcium Bilirubin or Covalent Bilirubin?
Unicorns Biotechnology can discuss bilirubin-related raw materials based on buyer requirements. If you need calcium bilirubin, covalent bilirubin, or a special bile pigment material, please send the target specification, assay method, application, and required documents. Availability should be confirmed before quotation.
What is the difference between Bilirubin Powder and Ox Bile Extract?
Bilirubin Powder is a purified bile pigment with a defined CAS number and high assay. Ox Bile Extract is a broader bile-derived extract that may contain bile acids, bile salts, and other bile components. Buyers should choose Bilirubin Powder when they need a specific bile pigment raw material, not a general bile extract.
What is the difference between Bilirubin Powder and Cholic Acid Powder?
Bilirubin Powder is a bile pigment. Cholic Acid Powder is a bile acid. They have different chemical structures, CAS numbers, solubility profiles, and applications. Bilirubin is commonly used in artificial bezoar, reagent, and biochemical research applications, while cholic acid is used in bile acid research and related specialty raw material fields.