 |
Typical Properties
| Item | Standard | Test Results | |
| Identification | A.H-NMR:Comply with the structure | Complies | |
| B.LC-MS:Comply with the structure | Complies | ||
| C.The IR spectrum of sample should be identical with that of reference standard; | Complies | ||
| D.HPLC-ESI-MSThe retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay. | Complies | ||
| Loss on drying | ≤0.5% | 0.11% | |
| Heavy metals | ≤10 ppm | <10ppm | |
| Sulphated ash | ≤0.2%, determined on 1.0 g. | 0.009% | |
| Related substances | Unspecified impurities: for each impurity | ≤0.10% | <0.10% |
| Total Impurity | ≤1.0% | 0.18% | |
| Purity | ≥99.0% | 99.82% | |
| Assay | 99.0%~101.0% (anhydrous substance). | 99.9% | |
Chemical Properties
Reddish brown prismatic crystals (in hot aqueous pyridine solution). Soluble in hot ethanol, insoluble in chloroform, xylene.
Usage
DyeIntermediate. For manufacture of Vat Dyes such as Reduced Yellow GCN.
Packaging and Shipping
Packing: 25KG/ drum
Storage
Store in Ventilation, low temperaturean.
Typical Properties
| Item | Standard | Test Results | |
| Identification | A.H-NMR:Comply with the structure | Complies | |
| B.LC-MS:Comply with the structure | Complies | ||
| C.The IR spectrum of sample should be identical with that of reference standard; | Complies | ||
| D.HPLC-ESI-MSThe retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay. | Complies | ||
| Loss on drying | ≤0.5% | 0.11% | |
| Heavy metals | ≤10 ppm | <10ppm | |
| Sulphated ash | ≤0.2%, determined on 1.0 g. | 0.009% | |
| Related substances | Unspecified impurities: for each impurity | ≤0.10% | <0.10% |
| Total Impurity | ≤1.0% | 0.18% | |
| Purity | ≥99.0% | 99.82% | |
| Assay | 99.0%~101.0% (anhydrous substance). | 99.9% | |
Chemical Properties
Reddish brown prismatic crystals (in hot aqueous pyridine solution). Soluble in hot ethanol, insoluble in chloroform, xylene.
Usage
DyeIntermediate. For manufacture of Vat Dyes such as Reduced Yellow GCN.
Packaging and Shipping
Packing: 25KG/ drum
Storage
Store in Ventilation, low temperaturean.
