Pharmaceutical grade Azelaic acid
Product name: Azelaic acid
State: solid powder
CAS NO: 123-99-9
Molecular formula: C9H16O4
Molecular weight: 188.22
EINECS: 204-669-1
Quality Standard:
| Standard | Result | Unit | Note | |
| Appearance | White solidr | Qualified | - | |
| Content | ≥99.00 | 99.72 | % | |
| Total dicarboxylic acid content | ≥99.50 | 99.65 | % | |
| Monoacid content | ≤0.10 | 0.07 | % | |
| Melting point | 107.5-108.5 | 107.6-108.2 | ℃ | |
| Acid value | 585.0-595.0 | 593.7 | MgKOH/g | |
| Warter content | ≤0.5 | 0.3 | % | |
| Ash content | ≤0.05 | 0.02 | % | |
| Heavy metal | ≤0.001% | 0.0008 | % | |
| Light transmittance,440nm | 97-100 | 98 | % | |
| Light transmittance,550nm | 97-100 | 98 | % | |
| Partide Size | 10um | 98.0% <10um | um | |
| The chloride ion | ≤0.005% | 0.003 | % | |
| Sulfate | ≤0.025% | 0.020 | % | |
| Iron ions | ≤0.002% | 0.0019 | % |
Packing: 25kg/barrel
Advantages: Compared with Daily chemical grade, the pharmaceutical grade is mainly higher in Content, higher light transmittance, no color difference. After the refined product of Daily chemical grade, the color is uniform, the impurities are lower, and Acid Content is less than 0.1%, suberic acid Content is less than 0.05%, sebacic acid Content is less than 0.05%, heavy metal ions are less than 10ppm, chloride ions are less than 20ppm, and insolubles are less than 0.05%, which can be used in daily chemical products. And medical uses.
Main Uses:
1. Used in medicine to synthesize dermatology drugs, anti-acne inflammation and various skin pigment disorders to treat skin hyperpigmentation, such as melanoma, malignant freckles, acne, etc. Combined with anti-inflammatory drugs, vitamins, antihistamines, etc., it can improve drug penetration and improve the treatment effect.
Azelaic acid cream, Azelaic acid cream combined with vitamin A acid cream for topical topical treatment of post-burn pigmentation have a good effect.