|
|
|
|
Suppliers for
p-Hydroxybenzenesulfonic acid
|
Properties | | CAS |
98-67-9 | | Formula |
C6H6O4S | | EINECS |
202-691-6 |
|
|
3 Registered suppliers
| Identification |
| | A.H-NMR | Comply with the structure
| | B.LC-MS | Comply with the structure
| | C. | The IR spectrum of sample should be identical with that of reference standard;
| | D.HPLC-ESI-MS | The 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.
| | Crystallinity | meets the requirements.
| | Loss on drying | ≤ 2.0%
| | Heavy metals | ≤ 10 ppm
| | Water | ≤ 1.0%
| | Sulphated ash | ≤ 0.5%, determined on 1.0 g.
| | Related substances |
| | Unspecified impurities |
| | for each impurity | ≤ 0.10%
| | Total Impurity | ≤ 0.5%
| | Purity | ≥ 99.0%
| | Assay | 99.0%~101.0% (anhydrous substance).
| | Microbiological Analysis |
| | Total plate count | ≤ 1000cfu/g
| | Yeast and Moulds | ≤ 100cfu/g
| | E. Coli. | Absent
| | Salmonella | Absent
| | S.aureus | Absent |
| Identification |
| | A.H-NMR | Comply with the structure
| | B.LC-MS | Comply with the structure
| | C. | The IR spectrum of sample should be identical with that of reference standard;
| | D.HPLC-ESI-MS | The 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.
| | Crystallinity | meets the requirements.
| | Loss on drying | ≤ 2.0%
| | Heavy metals | ≤ 10 ppm
| | Water | ≤ 1.0%
| | Sulphated ash | ≤ 0.5%, determined on 1.0 g.
| | Related substances |
| | Unspecified impurities |
| | for each impurity | ≤ 0.10%
| | Total Impurity | ≤ 0.5%
| | Purity | ≥ 99.0%
| | Assay | 99.0%~101.0% (anhydrous substance).
| | Microbiological Analysis |
| | Total plate count | ≤ 1000cfu/g
| | Yeast and Moulds | ≤ 100cfu/g
| | E. Coli. | Absent
| | Salmonella | Absent
| | S.aureus | Absent |
| Identification |
| | A.H-NMR | Comply with the structure
| | B.LC-MS | Comply with the structure
| | C. | The IR spectrum of sample should be identical with that of reference standard;
| | D.HPLC-ESI-MS | The 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.
| | Crystallinity | meets the requirements.
| | Loss on drying | ≤ 2.0%
| | Heavy metals | ≤ 10 ppm
| | Water | ≤ 1.0%
| | Sulphated ash | ≤ 0.5%, determined on 1.0 g.
| | Related substances |
| | Unspecified impurities |
| | for each impurity | ≤ 0.10%
| | Total Impurity | ≤ 0.5%
| | Purity | ≥ 99.0%
| | Assay | 99.0%~101.0% (anhydrous substance).
| | Microbiological Analysis |
| | Total plate count | ≤ 1000cfu/g
| | Yeast and Moulds | ≤ 100cfu/g
| | E. Coli. | Absent
| | Salmonella | Absent
| | S.aureus | Absent |
|
|
|
Privileged suppliers
Last update 2024-05-06
|
details