Vitamin D is steroid derivatives. It is the general term for the compounds that have similar structures and have the effect of normal skeletal growth and maintenance. At present, there are at least more than ten kinds of sterols that have vitamin D activity. But there are only two important matters, which are known as pro-vitamin D. One is ergosterol that exists in vegetable oil or yeast, which can generate vitamin D2 when irradiated by sunlight or ultraviolet radiation. It is also known as cholecalciferol or ergocalciferol. Another is 7-dehydrochlesterol that exists in the skin. It will become vitamin D3 after irradiated by the light. It is also called cholecalciferol.
Certificate of Analysis
Product Name
Vitamin D3 Powder
Specification
(500 CWS)
Batch No
180201
Manufacturing Date
2018/2/1
Production Quantity
500kg
Report Date
201 8-02-03
Test Standard
USP/EP
Shelf Life
24 Months
Items
Specifications
Results
Methods
Description
White to 1ight yellow powder, no foreign matter and no odor.
Complies
Visua1
Identification
The retention time of the principal peak conforms to which in the reference solution
Complies
HPLC
Particle Size
100% pass through sieve 40 mesh,
90% pass through sieve 80 mesh
100% 98.7%
USP<786> Ph. Eur.2.9.12
Vitamin D3 Assay
≥500,000iu/g
515000iu/g
HPLC
Loss on drying
≤5.0%
4.00%
USP<731> Ph. Eur.2.2.32
Heavy Metals (as Pb)
≤2. 00ppm
<0.05ppm
USP<231> II Ph.Eur.2.4.8
Arsenic (as As)
≤2. 00ppm
<0.05ppm
USP<211> II Ph.Eur.2.4.2
Total aerobic microbial count Total moulds and yeasts count
Remarks: 1.* Analyzed as per six batches, not less than once per year. 2. Store at the temperature below15C.
Application
1. Vitamin medicines. It mainly can promote intestinal absorption and deposition of calcium and phosphorus for the treatment of rickets and osteomalacia.
2. .According to the "food fortifier use of health standards (1993)" issued by Ministry of Health, D2 and D3, as nutritional supplements, can be used for liquid milk, margarine, dairy products and baby food.
3. It is mainly used in food, health products and other related products.
Packaging & Shipping
Packaging Detail
0.5kgs/Al-Bottle
1.0kgs/Al- Bottle
2.0kgs/Al- Bottle
5.0 kgs/Al-Bottle
25.0 kgs/Drum
or upon customers' request.
Storage
Store in a well-closed container away from moisture
Shelf Life
2 years if sealed and store away from direct sun light.
Delivery Detail
within 3 days after get the payment
· Storage:Stored in dry and cool place, keep away from strong light and heat.
