• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • CAS No.: 67-97-0
  • Other Names: 7-dehydrogenase cholesterol
  • MF: C27H44O
  • EINECS No.: 200-673-2
  • Place of Origin: Jiangsu, China (Mainland)
  • Type: Vitamins, Amino Acids and Coenzymes
  • Grade Standard: Medicine Grade
  • Brand Name: TNN
  • Model Number: VITAMIN
  • Purity: 97.2%
  • Appearance: White or almost white crystals
  • Identification: Infrared absorption spectrophotometry
  • Pre-cholecalciferol: 0.05% max
  • Trans-cholecalciferol: 0.1% max
  • Light absorption: 473
  • Specific optical rotation: +110.6°
  • Methanol: Not detected
  • Hexane: Not detected
  • Chlorobenzene: Not detected
  • Assay: 97.2%

Packaging & Delivery

Packaging Details Package:1kg/tin
Shipmark: As buyer's request
professional loading container, without dumping and leaking,
shipping mark on bag and container door both,
fork lift and manual lift can be used during loading and unloading with pallet,
packing photo before and after loading container
Delivery Time 15-20days


Vitamin D3
White or almost white crystals
The product above complies with Ph.Eur 6.1 and USP32.



AppearanceWhite or almost white crystalsWhite crystals
SolubilityPratically insoluble in water, freely soluble in ethanol, soluble in trimethyl pentane and fatty oils.Corresponding
IdentificationInfrared absorption spectrophotometry.
Comparison: Cholecalciferol CRS.
Pre-cholecalciferol0.05% maxCorresponding
Trans-cholecalciferol0.1% maxCorresponding
Light absorption465~495473
Specific optical rotation +105°~+112° +110.6°
Organic Volatile ImpuritiesMethanolMax 3000ppmNot detected
HexaneMax 290ppmNot detected
ChlorobenzeneMax 360 ppmNot detected
ImpuritiesTrans-VD3, Pro-VD3, L3, Iso-T3, T3Corresponding




kept in a light-proof, well-closed, dry and cool place.


Service we can provide:

1. Mixed container, we can mix different items in one container.

2. Quality control, before shipment, free sample for test. after shipment,  keep sample for 1 years

3. Prompt shipment with professional documents

4. Packing as your request, with photo before shipment



Professional Loading:

 1.We will provide you with professional loading

2.We have one team supervise uploading the materials. We will check the container, the packages, every step, taking

    pictures and make records.

3.We will make a complete Loading Report for our customer of each shipment








Our Advantages:

   Full experience of large numbers containers loading in Chinese sea port

   Fast shipment by reputed shipping line

   Packing with pallet as buyer's special request

   Best service after shipment with emails

   Cargoes photo before and after loading into container

   Raw materials from Chinese origin





Our Concept:

1.Client is first.We are trying to bring maximum profit to our clients and we only share small.

2.Credibility is the most important.

3.Quality control is our life.

4.Great sense of responsibility.


We will be responsible for not only our products, our clients, our suppliers, also the society.



Other products we can support: 









Company Activities




Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
Trade Assurance
China (Mainland) | Manufacturer, Trading Company
Transaction Level:
Supplier Assessments:
3 Transactions 20,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $266,000
Learn More