| Customization: | Available |
|---|---|
| CAS No.: | 98-92-0 |
| Formula: | C6h6n2o |
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Nicotinamide
Nicotinamide is a white acicular crystal or crystalline powder, odorless or slightly smelly, slightly bitter taste. The relative density is 1.4. 1g This product is soluble in 1mL water, 1.5mL ethanol or 10mL glycerin, and insoluble in ether. A 10% aqueous solution has a PH of 6.5-7.5. Stable to light and heat in dry air, niacin is generated when heated in alkaline or acidic solutions. Melting point 128-131 °C(lit.), boiling point 150-160 °C, packing density 360kg/m3, density 1.40, vapor density 4.22 (vs air), vapor pressure 0Pa at 25 °C, refractive index 1.4660 (estimate), flash point 182 °C, solubility 691g/l, acidity coefficient (pKa)3.3(at 20ºC), PH 6.0-7.5 (50g/l, H2O, 20ºC).
|
Testing Item |
Standard |
Result |
|
Appearance |
White crystalline powder |
conforms |
|
Assay/% |
99.0~101.0 |
99.4 |
|
Melting Range/(ºC) |
128~131 |
129.1~129.2 |
|
Appearance of Solution |
Not more intensely coloured than reference solution BY7 |
conforms |
|
PH |
6.0~7.5 |
6.5 |
|
Loss On Drying/% |
≤0.5 |
<0.5 |
|
Sulfated Ash/% |
≤0.1 |
<0.1 |
|
Residue on Ignition/% |
≤0.1 |
<0.1 |
For skin management
1. Moisturize, control oil and reduce blackheads
Niacinamide can effectively reduce transdermal water loss, although the effect of single use is not as good as hyaluronic acid and glycerin, but the effect of combined use is definitely 1+1>2; Niacinamide can calm down the sebaceous glands in the "excited" state, thus achieving oil control and reducing the effect of blackheads and acne.
2. Good wrinkle resistance
The anti-wrinkle ability of niacinamide lies in its ability to activate ATP, provide keratin cell vitality, increase collagen synthesis, and has a good synergy, and can be used with other anti-wrinkle ingredients.
3. Good auxiliary sunscreen effect
The damage caused by ultraviolet light to the human body is not only tanning, but also leads to the occurrence of immune suppression, and even skin cancer. Many studies at home and abroad have shown that niacinamide can effectively reduce the occurrence of skin photoimmunosuppression under ultraviolet irradiation.
4. Good gentleness
Compared with vitamin C, The mild nature of niacinamide is not bad, many people's skin can basically be used, but it is still necessary to pay attention to the problem of skin tolerance, such as The Ordinary whitening essence of 10% niacinamide concentration, or has a certain irritation. Therefore, it is best to pass the skin tolerance test before use to determine the tolerance before use, and be careful not to use with acid-containing products, such as salicylic acid and fruit acid to prevent excessive irritation to the skin.
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