Naphthol yellow S
- CAS No.
- 846-70-8
- Chemical Name:
- Naphthol yellow S
- Synonyms
- CI 10316;ACID YELLOW S;ACID YELLOW 1;NAPHTHALENE YELLOW;1307yellow;1422yellow;citronin A;zlutkysela1;CI NO 10316;paperyellowl
- CBNumber:
- CB7308633
- Molecular Formula:
- C10H4N2Na2O8S
- Molecular Weight:
- 358.19
- MDL Number:
- MFCD00003958
- MOL File:
- 846-70-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | >300℃ |
|---|---|
| storage temp. | Room Temperature |
| solubility | Acetonitrile (Slightly), DMSO (Slightly) |
| Colour Index | 10316 |
| form | powder |
| color | Light Yellow to Dark Yellow |
| Merck | 14,6393 |
| BRN | 2708476 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Major Application |
cleaning products cosmetics food and beverages personal care |
| Cosmetics Ingredients Functions |
HAIR DYEING COLORANT |
| InChI | 1S/C10H6N2O8S.2Na/c13-10-7-3-5(21(18,19)20)1-2-6(7)8(11(14)15)4-9(10)12(16)17;;/h1-4,13H,(H,18,19,20);;/q;2*+1/p-2 |
| InChIKey | CTIQLGJVGNGFEW-UHFFFAOYSA-L |
| SMILES | [Na+].[Na+].[O-]c1c(cc([N+]([O-])=O)c2ccc(cc12)S([O-])(=O)=O)[N+]([O-])=O |
| FDA 21 CFR | 74.1707a; 74.2707a; 82.2707a |
| EWG's Food Scores | 1-4 |
| FDA UNII | 08F8S9O3I5 |
| EPA Substance Registry System | C.I. Acid Yellow 1 (846-70-8) |
| UNSPSC Code | 85151701 |
| NACRES | NA.47 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H317-H373 | |||||||||
| Precautionary statements | P280-P302+P352-P314 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Hazard Codes | Xi,C,F | |||||||||
| Risk Statements | 11-34 | |||||||||
| Safety Statements | 22-24/25-45-36/37/39-26-16 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | QK1813000 | |||||||||
| Hazard Note | Irritant | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 32129000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Skin Sens. 1 STOT RE 2 |
|||||||||
| NFPA 704 |
|
Naphthol yellow S price More Price(29)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 70540 | Naphthol Yellow S | 846-70-8 | 25g | $18.9 | 2026-04-30 | Buy |
| Sigma-Aldrich | 49547 | Naphthol Yellow S analytical standard | 846-70-8 | 25mg | $188 | 2026-04-30 | Buy |
| TCI Chemical | F0100 | Naphthol Yellow S Hydrate >98.0%(HPLC)(T) | 846-70-8 | 25g | $115 | 2026-04-30 | Buy |
| TRC | TRC-N369048-5G | Naphthol Yellow S Hydrate | 846-70-8 | 5g | $103 | 2026-06-03 | Buy |
| TRC | TRC-N369048-500MG | Naphthol Yellow S Hydrate | 846-70-8 | 500mg | $68 | 2026-06-03 | Buy |
Naphthol yellow S Chemical Properties,Uses,Production
Chemical Properties
light yellow powder
Uses
Dye for wool, silk.
Uses
Naphthol Yellow S Hydrate is used in methods for dying of textiles.
Preparation
4-Hydroxynaphthalene-1,3,6-trisulfonic acid or 1-Naphthol-4,7-disulfonic acidor 1-Naphthol-2,7-disulfonic acidor more of the latter with the nitro compounds and nitric acid reaction.
Definition
ChEBI: An organic sodium salt that is the disodium salt of 5,7-dinitro-8-hydroxynaphthalene-2-sulfonic acid.
Biological Activity
Naphthol yellow S (NYS) is used as a stain for protein basic groups. It is an acidic dye and forms a NYS-protein complex at acidic pH. Combination of feulgen and NYS provides DNA to protein ratio.
Purification Methods
It is a water-soluble greenish yellow powder. The free sulfonic acid can be recrystallised from dilute HCl (m 150o) or AcOH/EtOAc (m 148-149.5o). The disodium salt is then obtained by dissolving the acid in two equivalents of aqueous NaOH and evaporating to dryness and drying the residue in a vacuum desiccator. The sodium salt can be recrystallised from the minimum volume of H2O or from EtOH [Dermer & Dermer J Am Chem Soc 61 3302 1939]. [Beilstein 11 III 542.]
Properties and Applications
colourful green light yellow. Soluble in cold water and hot water yellow, in 0 ℃ when solubility of 8%, slightly soluble in alcohol. Meet strong sulfuric acid is green light yellow, diluted colored light become weak. Its water solution to join sodium hydroxide have floc; Join chloride-ferric chloride solution from yellow to become yellow light brown. Apply to wool, polyamide fiber dyeing, coloured paper colourful yellow, the heavy metal salt can be used for printing ink and rubber color. Can also be used for soap, drug, cosmetics, biological and leather dyeing.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 1 | 1 | 5 | 3 | 1 | 5 | 1 | 1 |
| AATCC | 1 | 2 | 2 | 1 | 1 | 1 | 2 | 2 |
Naphthol yellow S Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Shanghai Longsheng chemical Co.,Ltd. | 58099637 13585536065 | sales@shlschem.com | China | 9880 | 59 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Tianjin heowns Biochemical Technology Co., Ltd. | 400 638 7771 | sales@heowns.com | China | 14412 | 57 |
| Maya High Purity Chemicals | +86 (573) 82222445 (0)18006601000 452520369 | sales@maya-r.com | China | 11693 | 57 |
| Spectrum Chemical Manufacturing Corp. | 021-021-021-67601398-809-809-809 15221380277 | marketing_china@spectrumchemical.com | China | 9643 | 60 |
| TOKYO CHEMICAL INDUSTRY CO., LTD. | 03-36680489 | Sales-JP@TCIchemicals.com | Japan | 28364 | 80 |
View Lastest Price from Naphthol yellow S manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2020-01-05 | NAPHTHOL YELLOW S
846-70-8
|
$1.00 | 1KG | 95-99% | 1ton | Career Henan Chemical Co |
-
- NAPHTHOL YELLOW S
846-70-8
- $1.00
- 95-99%
- Career Henan Chemical Co
