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7,7'-(carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonic acid disodium salt CAS:20324-87-2 CAS NO.20324-87-2
- FOB Price: USD: 1.00-1.00 /Metric Ton Get Latest Price
- Min.Order: 1 Kilogram
- Payment Terms: L/C,T/T
- Available Specifications:
99%(1-5)Metric Ton99%(5-20)Metric Ton
- Product Details
Keywords
- 7,7'-(carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonic acid disodium salt
- Sodium 6,6'-(1,3-ureylene) bis(1-naphthol-3-sulfonate)
- CAS:20324-87-2
Quick Details
- ProName: 7,7'-(carbonyldiimino)bis[4-hydroxy-2-...
- CasNo: 20324-87-2
- Molecular Formula: C21H16N2O9S2
- Appearance: grey white or reddish brown uniform po...
- Application: As intermediate for azo dyes such as d...
- DeliveryTime: Within 2 weeks after order confirmatio...
- PackAge: 25kgs/drum
- Port: Qingdao port
- ProductionCapacity: 2000 Metric Ton/Year
- Purity: 99%
- Storage: Preserve in well-closed, light-resist...
- Transportation: By sea or by air
- LimitNum: 1 Kilogram
- CAS: 20324-87-2
Superiority
Product name: 7,7'-(carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonic acid disodium salt；sodium 6,6'-(1,3-ureylene)bis(1,1'-naphthol)-3,3'-sulfonate
Properties: light grey paste. Soluble in water, easily soluble in alkaline solutions.
CAS: 20324-87-2
Molecular formula: C21H16N2O9S2
Molecular weight: 548.45
Details
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Item |
Standard |
Test Results |
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Identification |
A.H-NMR:Comply with the structure |
Complies |
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B.LC-MS:Comply with the structure |
Complies |
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C.The IR spectrum of sample should be identical with that of reference standard; |
Complies |
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D.HPLC-ESI-MS |
Complies |
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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. |
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Heavy metals |
≤10 ppm |
<10ppm |
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Water |
≤1.0% |
0.10% |
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Sulphated ash |
≤0.5%, determined on 1.0 g. |
0.01% |
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Related substances |
Unspecified impurities: for each impurity |
≤0.10% |
<0.10% |
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Total Impurity |
≤0.5% |
0.18% |
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Purity |
≥99.0% |
99.70% |
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Assay |
99.0%~101.0% (anhydrous substance). |
99.80% |
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Storage |
Preserve in well-closed, light-resistant and airtight containers. |
Complies |
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