C10H5NNa2O8S2
377.3 g/mol
Research ReagentWarning
1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt
CAS525-05-3EC208-369-1
Category
Research Reagent
Compound Class
Other
Primary Use
Research Compound
1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt is a research reagent commonly used as a colorimetric or complexometric agent for the detection and determination of cobalt and potassium ions.
Reagent for cobalt detection and quantificationReagent for potassium detection and quantification
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
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Safety Reference
Warning
H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt (CAS 525-05-3) is 2908.99.
HS code (international, 6-digit)
2908.99
EU CN code (8-digit)
2908 99 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
disodium;3-hydroxy-4-nitrosonaphthalene-2,7-disulfonate
InChIKey
DMKMTGULLYISBH-UHFFFAOYSA-L
SMILES
C1=CC2=C(C(=C(C=C2C=C1S(=O)(=O)[O-])S(=O)(=O)[O-])O)N=O.[Na+].[Na+]
Synonyms (18)
- 1-Nitroso-3,6-disulfonate
- NITROSO RED SALT
- Nitroso R
- Nitroso-R-Salz
- Nitroso-R-salt
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