Cholesterol #57-88-5
Cholesterol is a waxy, lipid-like sterol substance that exists widely within every cell of living organisms. It is endogenously synthesized mainly in the liver of animals, while it can also be ingested from certain animal-derived food sources.
As an essential biological sterol, cholesterol maintains vital physiological functions for organisms. It acts as a fundamental building block for the biosynthesis of multiple steroid hormones, vitamin D and bile acids. Besides its biological significance, it serves as a critical raw material for steroid pharmaceutical intermediate synthesis and biochemical research.
This product is available for bulk industrial procurement to support stable production and research demands.
| Cholesterol Chemical Properties |
| Melting point | 148-150 °C |
| alpha | -36 º (c=2, dioxane) |
| Boiling point | 360 °C |
| density | 1.06 |
| refractive index | 1.5250 (estimate) |
| Fp | 250 °C |
| storage temp. | -20°C |
| solubility | H2O: 0.002 mg/mL |
| form | powder |
| pka | 15.03±0.70(Predicted) |
| color | white |
| Specific Gravity | 1.067 |
| Odor | wh. or faintly yel. pearly granules or crystals, almost odorless |
| biological source | synthetic |
| Optical Rotation | -40.201°(C=0.01g/ml CHCL3) |
| Water Solubility | negligible |
| Merck | 14,2201 |
| BRN | 1915888 |
| Dielectric constant | 2.9（Ambient） |
| InChIKey | HVYWMOMLDIMFJA-DPAQBDIFSA-N |
| LogP | 9.619 (est) |
| CAS DataBase Reference | 57-88-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Cholesterol(57-88-5) |
| IARC | 3 (Vol. 31, Sup 7) 1987 |
| EPA Substance Registry System | Cholesterol (57-88-5) |
| Safety Information |
| Hazard Codes | Xn,Xi |
| Risk Statements | 10-48/20/22-40-38-22-36/37/38-67-36/38-20-63 |
| Safety Statements | 24/25-22-36/37-36-26 |
| RIDADR | UN 1170 3/PG 3 |
| WGK Germany | 1 |
| RTECS | FZ8400000 |
| TSCA | Yes |
| HS Code | 2906 13 10 |
| HazardClass | IRRITANT |
| Hazardous Substances Data | 57-88-5(Hazardous Substances Data) |
| Toxicity | Present in all parts of the animal body; concentrated in spinal cord, brain, skin secretions, and gallstones. An unsaturated, unsaponifiable alcohol (m.p. 149℃). It is synthesized in the body from ethanoate units; its metabolism is regulated by a specific set of enzymes. It is the parent compound of many other steroids and its presence in high concentrations in the blood is suspected as being a contributory factor in cardiovascular disease. |
Product Introduction of Cholesterol (CAS:57-88-5)
H2: Product Overview
Cholesterol, CAS No. 57-88-5, is a natural sterol compound widely found in animal tissues. It is a white or pale yellow crystalline powder with unique amphipathic properties and strong biological activity. It serves as an essential precursor for steroid synthesis and has good emulsifying capacity. Our cholesterol product features high purity, low heavy metal content and stable batch-to-batch consistency, widely supplied to pharmaceutical factories, biochemical laboratories, cosmetic manufacturers and biotech enterprises worldwide.
H2: Product Application
H3: Pharmaceutical Raw Material
Cholesterol acts as a critical starting material for the synthesis of hormone drugs and vitamin D series products. It is also the core raw material for manufacturing artificial bezoar, meeting the production requirements of pharmaceutical formulations. It can be used in the preparation of brain phospholipids and cholesterol flocculation test reagents for clinical auxiliary testing.
H3: Biochemical Research & Laboratory Reagent
It is a standard biochemical reagent for universities, research institutes and biotech labs. It is commonly used in lipid metabolism research, cell membrane model construction, biochemical assay development and related sterol pathway experiments. It can be applied for cholesterol flocculation test in biochemical analysis.
H3: Emulsifier for Formulation
Thanks to its amphipathic molecular structure, cholesterol can function as an emulsifier. It helps stabilize emulsion systems, adjust the viscosity of finished products and improve the dispersion of oil-phase components in different formulations.
H3: Cosmetic & Topical Formulation Industry
It can be added into skincare creams, ointments and topical emulsions. It helps strengthen the lipid barrier of skin, improve product emollient performance and stabilize the emulsion system of cosmetic products.
H3: Bioscience & Cell Culture
Suitable for cell culture medium formulation. It supplies sterol nutrients required for cell growth, supporting the culture of specific mammalian cell lines in biological research.
H2: Delivery Schedule
H3: In-stock Goods
Ready stock can be shipped within 2–3 working days after payment confirmation and shipping details verification.
H3: New Production Batch
For bulk orders requiring newly manufactured batches, the production lead time is 7–10 working days. The exact lead time will be reconfirmed based on order quantity and current production schedule.
H2: Packaging & Transportation
H3: Standard Packaging Specification
Trial sample: 1g / 5g / 10g sealed aluminum foil bag or glass bottle
Bulk commercial shipment: 25kg per cardboard drum, with double inner polyethylene bag
Customized packaging specifications are acceptable upon customer’s request.
H3: Shipping Options
We support international express, air freight and sea freight according to order volume and destination. The product is packed with moisture-proof and light-proof measures. We can provide commercial invoice, packing list and COA to support import customs clearance.
H3: Storage Instructions
Seal tightly and store in cool, dry and dark warehouse. Keep away from direct sunlight, high temperature and oxidizing substances. Avoid long-term exposure to air to prevent discoloration and maintain stable chemical properties.
H2: Quality Assurance
H3: Batch Certificate of Analysis
Each batch is accompanied with COA. Testing items include appearance, purity, melting point, moisture, loss on drying, heavy metals and related impurities. HPLC detection is available for purity verification.
H3: Internal QC Control
Full-process quality monitoring from raw material feeding to finished product release. Third-party inspection is supported if customers require independent quality verification.
H2: After-sales Service
Technical support: Our technical team provides physical & chemical property consultation, storage guidance and formulation reference suggestions.
Quality complaint handling: In case of confirmed quality issues after goods receipt, we will quickly communicate with customers to negotiate solutions such as reshipment or compensation.
Document service: Assist customers in preparing import customs documents and MSDS data sheets.
H2: Customer Cases
H3: Pharmaceutical Manufacturer
Long-term bulk supply for pharmaceutical factories. Customers adopt our cholesterol as starting material for hormone drug synthesis and artificial bezoar production, with stable batch quality to meet GMP-related production requirements.
H3: Biochemical Research Institute
Supply lab-grade cholesterol for university biochemistry laboratories. It is used for cholesterol flocculation test and lipid metabolism research, with complete batch test reports for academic projects.
H3: Cosmetic Raw Material Formulator
Supply cosmetic-grade cholesterol for skincare formulation companies. It is used as emulsifier and skin barrier repairing raw material in cream and ointment products.
H2: FAQ
H3: Q1: What is your MOQ?
A: Small trial sample orders for testing are available, and large bulk orders are also supported. MOQ can be negotiated.
H3: Q2: Can I get samples for testing?
A: Samples are available. Customers only need to bear the freight cost.
H3: Q3: What documents can you provide?
A: COA, MSDS, commercial invoice, packing list. Other certification documents can be discussed separately.
H3: Q4: What is the proper storage condition for cholesterol?
A: Keep sealed in cool, dry and dark place. Avoid heat, light and oxidants to prevent deterioration.
H3: Q5: What payment terms can we choose?
A: T/T is available. L/C and other payment terms can be negotiated for long-term cooperative clients.
H3: Q6: Is this product suitable for injection-grade formulation?
A: We supply different grades including biochemical grade and pharmaceutical grade. Please tell us your final application, we will recommend the matching grade and provide corresponding test data.
