Product Name: Vitamin D3

Chemical Structure: 

CAS Number: 67-97-0

Molecular Formula: C27H44O

Molecular Weight: 384.64

Storage: -20±2°C Dark and Sealed

Appearance: White Powder

Identification: HNMR

Purity: 99.7%

Assay: 99.5%

Uncertainty: ±2.0%

1. Purity

1.1. HPLC

2. Identification

2.1. HNMR

3. Loss on Drying

3.1. TGA

4. Final Result

Method: TGA

Results: 0.15%

Chromatograpihc putiry (HPLC): 99.7%

Loss on Drying: 0.15%

Assay (100% method): 99.5%

Uncertainty: ±2.0%

The calculation of the 100% method follows the formula:

Assay (%) = (100%-Loss on Drying * Purity HPLC (%) /100%

Loss on Drying is considered as absolute effect, HPLC purity is considered as relative effect.

The uncertainty values are the expanded uncertainty and represent an estimated standard deviation equal to the positive square root of the total variation of the uncertainty of components. A normal distribution is assumed and a coverage factor of K=2 is chosen using approximately a 95% confidence level.

注：以上信息仅供参考，以产品附带证书为准。