Avobenzone manufacturer CAS:70356-09-1
Sep 10th, 2022 at 08:39 Electronic Chemicals Fairview 52 views Reference: 4openZKEe7A
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| TEST | UNIT | SPECIFICATION |
| APPEARANCE | LIGHT YELLOW TO WHITE CRYSTALLINE POWDER | |
| ASSAY | % | 97.00-104.00 |
| IDENTIFICATION | ||
| ABSORPTIVITIESAT 360nm | % | 3.00MAX |
| VOLATILES | % | 0.50MAX |
| METLTING RANGE | ℃ | 81.00-86.00 |
| IMPURITY | ||
| INDIVIDUAL IMPURITIES | % | 3.00MAX |
| TOTAL IMPURITIES | % | 4.50MAX |
| SPECIFICEXTINCTION | 1150-1180 | |
| ARSENIC | ppm | 2.0MAX |
| HEAVY METALS | ppm | 20.0MAX |
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| Items of Analysis | Standard of Analysis | Test Results |
| Appearance | White or pale yellow crystalline powder | Conform |
| Dentification | A∶ Infrared Absor ption <197K> | Conform |
| B: The retention time of major peak of the sample solution corresponds to that of the standard solution,as obtained in the Assay | Conform | |
| Assay ( Gc ) | 95.0%-105.0% | 99.8% |
| Loss on Drying | 0.5% max | 0.07% |
| Melting Point | 81℃-86℃ | 83.8-84.7℃ |
|
Specific Extinction (E1%,1cm at 357nm) |
1100.0-1180.0 | 1152 |
| Impurities ( Gc ) | Individual impurities :3.0% max | 1.4% |
| Total impurities :4.5% max | 2.0% | |
| Residual Solvents | Methanol :3000ppm max | 239ppm |
| Conclusion | Conforms to USP Standard | |
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