Product Name: Vitamin A

Chemical Structure:

CAS Number: 68-26-8

Molecular Formula: C20H30O

Molecular Weight: 286.45

Storage: -20±2°C, dark and sealed

Appearance: Yellow Solid

Identification: MS&HNMR

Purity: 97.0%

Uncertainty: ±2.0%

1. Purity

1.1. MS

1.2. 1H-NMR

2. Final Result

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。