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NAPHTHOL YELLOW S

NAPHTHOL YELLOW S
NAPHTHOL YELLOW S structure
CAS No.
846-70-8
Chemical Name:
NAPHTHOL YELLOW S
Synonyms
CI 10316;1307yellow;1422yellow;citronin A;zlutkysela1;CI NO 10316;paperyellowl;yellowlake71;yellowno.403;solaryellowny
CBNumber:
CB7308633
Molecular Formula:
C10H4N2Na2O8S
Formula Weight:
358.19
MOL File:
846-70-8.mol

NAPHTHOL YELLOW S Properties

Melting point:
>300℃
Colour Index 
10316
form 
neat
Merck 
14,6393
BRN 
2708476
Stability:
Stable. Incompatible with strong oxidizing agents.
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
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  Yes
HS Code  32129000
Symbol(GHS):
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
Precautionary statements:
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P272 Contaminated work clothing should not be allowed out of the workplace.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P501 Dispose of contents/container to..…

NAPHTHOL YELLOW S price More Price(7)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 70540 Naphthol Yellow S 846-70-8 25g $25.5 2018-11-20 Buy
Sigma-Aldrich 49547 Naphthol Yellow S analytical standard 846-70-8 25mg $119 2018-11-20 Buy
TCI Chemical F0100 Naphthol Yellow S Hydrate >98.0%(HPLC)(T) 846-70-8 25g $82 2018-11-22 Buy
Alfa Aesar B20872 Naphthol Yellow S 846-70-8 250g $106 2018-11-13 Buy
Alfa Aesar B20872 Naphthol Yellow S 846-70-8 50g $27 2018-11-13 Buy

NAPHTHOL YELLOW S Chemical Properties,Uses,Production

Chemical Properties

light yellow powder

Uses

Dye for wool, silk.

Definition

ChEBI: An organic sodium salt that is the disodium salt of 5,7-dinitro-8-hydroxynaphthalene-2-sulfonic acid.

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.]

NAPHTHOL YELLOW S Preparation Products And Raw materials

Raw materials

Preparation Products


NAPHTHOL YELLOW S Suppliers

Global( 66)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
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Henan Tianfu Chemical Co.,Ltd.
0371-55170693
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Chemwill Asia Co.,Ltd.
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Hubei Jusheng Technology Co.,Ltd.
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J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
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Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30168 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
021-67121385 Sales-CN@TCIchemicals.com China 24560 81
Energy Chemical 021-58432009 / 400-005-6266
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Shanghai Longsheng chemical Co.,Ltd. 021-58099637,58099652,58099650,58099609 To 8009,8068; 13585536065,QQ:975986869
0086-21-33191781 sales@shlschem.com; bin.wu@shlschem.com;xianjun.hong@shlschem.com China 9824 59
Chengdu XiYa Chemical Technology Co., Ltd. 4008-626-111
028-84752058 sale@xiyashiji.com China 9636 57

NAPHTHOL YELLOW S Spectrum


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