C10H4N2Na2O8S
358.19 g/mol
Dye & PigmentWarning
Naphthol Yellow S
CAS846-70-8EC212-690-2
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
Histological dye and acid yellow dye
Naphthol Yellow S is an organic sodium salt and the disodium salt of 5,7-dinitro-8-hydroxynaphthalene-2-sulfonic acid. It is primarily used as a histological dye and an acid yellow dye.
Histological dyeAcid yellow dye
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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CAS 846-70-8
Related Compounds
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Diazonium salt for dye production
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(2E)-2-[(2E,4E,6E)-7-[3-(5-carboxypentyl)-1,1-dimethyl-6,8-disulfobenzo[e]indol-3-ium-2-yl]hepta-2,4,6-trienylidene]-3-ethyl-1,1-dimethyl-6-sulfobenzo[e]indole-8-sulfonate
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fluorescent dye for labeling
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yellow dye for coloring
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Biological stain and histological dye
Safety Reference
Warning
H317May cause an allergic skin reaction
H373May cause damage to organs through prolonged or repeated exposure
Identifiers
IUPAC Name
disodium;5,7-dinitro-8-oxidonaphthalene-2-sulfonate
InChIKey
CTIQLGJVGNGFEW-UHFFFAOYSA-L
SMILES
C1=CC2=C(C=C1S(=O)(=O)[O-])C(=C(C=C2[N+](=O)[O-])[N+](=O)[O-])[O-].[Na+].[Na+]
Synonyms (71)
- 1307 Yellow
- 1422 Yellow
- 99% +(HPLC)
- A.F. Yellow No. 1
- Acid Leather Yellow NYS
- Acid Yellow S
- Acid Yellow S (VAN)
- Acid yellow 1
- Amacid Yellow S
- C.I. Acid Yellow 1
- C.I. Food Yellow 1
- Calcocid Yellow S
- Dolkwal Naphthol Yellow S
- Dye FDC Yellow No.1
- EXT D&C yellow no. 7
- Edicol Supra Yellow Y
- Ext D&C Yellow 7
- FD and C Yellow No. 1
- FD&C YELLOW NO. 1 (DELISTED)
- FD&C Yellow No. 1
- Flavianic acid disodium salt
- Flavianic acid sodium salt
- Hispacid Yellow NSF
- Japan Yellow 403-1
- Japan Yellow No. 403-1
- Japanese Yellow 403-1
- Java Naphthol Yellow S
- Kca Naphthol Yellow S
- Kiton Yellow S
- Maple Naphthol Yellow S
- Nankai Naphthol Yellow S
- Naphthol Lake Yellow FY
- Naphthol Yellow L
- Naphthol Yellow OS
- Naphthol Yellow PL
- Naphthol Yellow S
- Naphthol Yellow SEL 12
- Naphthol Yellow SFQ
- Naphthol Yellow SNA
- Naphthol Yellow SXX
- Naphthol yellow S hydrate
- Naphthol yellow S sodium salt
- Naphtocard Yellow S
- Naphtol Yellow S
- Paper Yellow L
- Rakuto Naphthol Yellow S
- Sodium flavianate
- Solar Yellow NY
- Solar Yellow NY Conc
- Solar Yellow NY, sodium salt
- Transparent Yellow Lake 16091
- Yellow Lake 71
- Yellow No. 403
- Zlut kysela 1
- Zlut kysela 1 [Czech]
- Zlut naftolova S
- Zlut naftolova S [Czech]