當(dāng)前頁面： 首頁 > 新聞中心新聞中心
Certificate of Analysis
|
Product Name |
Dithranol (Cas No:1143-38-0) |
||
|
Batch No. |
20221015 |
Quantity |
1.0kgs |
|
M. Date |
Oct, 2022 |
Exp. Date |
Sep, 2025 |
|
Test |
Specification |
Results |
|
|
Description |
Yellow to brownish-yellow crystalline powder |
Complies |
|
|
Solubility |
Practically insoluble in water, soluble in methylene chloride, sparingly soluble in acetone, slightly soluble in ethanol(96%). It dissolves in dilute solutions of alkali- -hydroxides |
Complies |
|
|
Identification |
obtained in the test solution is similar in position, colour and size to the principal spot in the chromatogram obtained with reference solution on(a)
solution shows a blue fluorescence |
Complies |
|
|
Loss on drying |
NMT 0.5% |
0.379% |
|
|
Sulfated ash |
NMT 0.1% |
0.09% |
|
|
Chlorides |
NMT 100ppm |
Complies |
|
|
Related substances Test-A: Impurity A(Anthrone) Impurity B(Dantron) Impurity C(Dithranol Dimer) Test-B: Impurity D (1-Hydroxy-9-anthron) Total (Test A+Test B) |
NMT 1.0% NMT 1.0% NMT 1.0% NMT 2.5% NMT 3.0% |
0.001% 0.472% Not detected Not detected 0.473% |
|
|
Assay (On dried basis) |
98.5-101.0%% |
99.77% |
|
|
Conclusion: |
Complies with the In-house standard |
||
