Naphthol yellow S
Naphthol yellow S (CAS 846-70-8) supplier Zemixal: C10H4N2Na2O8S, COA and SDS with every lot, worldwide shipping. Quotes within one business day.
About Naphthol yellow S
Zemixal supplies Naphthol yellow S within its laboratory Chemicals & Reagents portfolio. Identity at a glance (Synthesis): CAS 846-70-8, formula C10H4N2Na2O8S and molar mass 358.19 g/mol. Expect light yellow to yellow and light orange to brown powder.
Where it is used
- Histology & cytology staining
- Microscopy
- Clinical laboratories
- Biological staining
Safe handling
Classified under GHS with signal word Warning and hazard statements H317 and H373. Read the SDS before first use.
Order it in 25 g, 100 g and 1 kg packs or ask for a bulk quotation. Each lot travels with a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Typical uses
- Histology & cytology staining
- Microscopy
- Clinical laboratories
- Biological staining
Applications
Specifications and identifiers
| Product name | Naphthol yellow S |
|---|---|
| Catalogue number | ZX-000647 |
| CAS number | 846-70-8 |
| IUPAC name | disodium;5,7-dinitro-8-oxidonaphthalene-2-sulfonate |
| Molecular formula | C10H4N2Na2O8S |
| Molar mass | 358.19 g/mol |
| Exact mass | 357.9484 |
| Grade | Synthesis |
| Physical form | Powder |
| Appearance | Light yellow to yellow and light orange to brown powder |
| H-bond donors / acceptors | 0 / 8 |
| Topological polar surface area | 180 Ų |
| HS code | 29089990 |
| 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+] |
| PubChem CID | 2724063 |
| Synonyms | Acid Yellow 1, Food Yellow 1, Sodium flavianate, Flavianic acid, sodium salt, Acid Yellow S, C.I. Acid Yellow 1, Flavianic acid disodium salt, Amacid Yellow S, C.I. Food Yellow 1, Kiton Yellow S, Paper Yellow L, Zlut naftolova S |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H317May cause an allergic skin reaction
- H373May causes damage to organs through prolonged or repeated exposure
Precautionary statements P260, P261, P272, P280, P302 + P352, P319, P321, P333 + P317, P362 + P364, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 25 g | Quoted on request | |
| 100 g | Quoted on request | |
| 1 kg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
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More in Stains, Fluorescent Dyes & Histology Reagents
- CAS
- 536-46-9
- Formula
- C8H14Cl2N2
- MW
- 209.11 g/mol
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