ETHYL ORANGE

Product Name: ETHYL ORANGE
CAS No.: 62758-12-7
Chemical Name: ETHYL ORANGE
Synonyms: ETHYL ORANGE;Diethyl orange;EthylOrangeSodium;EthylorangeAcs98%;Ethylorange Acs 98%;LABOTEST-BB LT00452773;Ethyl orange indicator;ETHYL ORANGE SODIUM SALT;RESAZURINE REDOX INDICATOR;Ethyl orange sodium salt, 92%, pure
CBNumber: CB7101186
Molecular Formula: C16H20N3NaO3S
Formula Weight: 357.4
MOL File: 62758-12-7.mol

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ETHYL ORANGE Property

Melting point:: >300°C
storage temp.: room temp
solubility: Very soluble in water; very slightly soluble in ethanol
pka: 4.34(at 25℃)
form: Powder
color: Orange
PH Range: Red (3.4) to yellow (4.8)
Water Solubility: H2O: 1mg/mL
ε(extinction coefficient): ≥29000 at 473-477nm in deionized water
≥8000 at 274-282nm in deionized water
λmax: 474nm
BRN: 3821641
Major Application: Lithographic plate preparation, holographic storage, hybrid materials, inks, surface probes, diagnostic agents for diseases related with amyloid accumulation
InChI: InChI=1S/C16H19N3O3S.Na.H/c1-3-19(4-2)15-9-5-13(6-10-15)17-18-14-7-11-16(12-8-14)23(20,21)22;;/h5-12H,3-4H2,1-2H3,(H,20,21,22);;/b18-17+;;
InChIKey: JIQMFPYPPUEBQO-QIKYXUGXSA-N
SMILES: N(C1C=CC(/N=N/C2C=CC(S(O)(=O)=O)=CC=2)=CC=1)(CC)CC.[NaH]
CAS DataBase Reference: 62758-12-7(CAS DataBase Reference)
EPA Substance Registry System: Benzenesulfonic acid, 4-[[4-(diethylamino)phenyl]azo]-, sodium salt (62758-12-7)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36-24/25
WGK Germany: 3
TSCA: TSCA listed
HS Code: 29270000
Storage Class: 11 - Combustible Solids
Hazard Classifications: Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 199567
Product name: Ethyl Orange sodium salt
Purity: indicator grade, Dye content 90%
Packaging: 100g
Price: $264
Updated: 2025/07/31

TCI Chemical

Product number: E0155
Product name: Ethyl Orange
Packaging: 25g
Price: $67
Updated: 2025/07/31

TRC

Product number: E945638
Product name: Ethyl Orange sodium salt
Packaging: 250mg
Price: $45
Updated: 2021/12/16

Chem-Impex

Product number: 22836
Product name: EthylOrangesodiumsalt,90%(dyecontent)
Purity: 90%(dyecontent)
Packaging: 100G
Price: $16.8
Updated: 2021/12/16

AK Scientific

Product number: O109
Product name: Ethyl Orange sodium salt
Packaging: 25g
Price: $38
Updated: 2021/12/16

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ETHYL ORANGE Chemical Properties,Usage,Production

Chemical Properties

orange crystalline powder

Uses

Indicator: pH 3.0 (red) to pH 4.5 (yellow)

Purification Methods

Recrystallise it twice from water. [Beilstein 16 IV 511.]

ETHYL ORANGE Preparation Products And Raw materials

Raw materials

Preparation Products

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ETHYL ORANGE Suppliers

Americas 1 Belgium 1 Canada 1 China 65 Europe 3 France 1 Germany 3 Hungary 1 India 30 Japan 3 Switzerland 2 United Kingdom 6 United States 24 Global 141

Changchun BC＆HC Pharmaceutical Technology Co.,Ltd

Tel: 043188417879 15804318257
Fax: 0431-88417879
Email: 3468242165@qq.com
Country: China
ProdList: 195
Advantage: 58

J & K SCIENTIFIC LTD.

Tel: 18210857532; 18210857532
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 4006356688 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40228
Advantage: 62

TCI (Shanghai) Development Co., Ltd.

Tel: 021-67121386
Fax: 021-67121385
Email: Sales-CN@TCIchemicals.com
Country: China
ProdList: 24529
Advantage: 81

Energy Chemical

Tel: 021-021-58432009 400-005-6266
Fax: 021-58436166
Email: sales8178@energy-chemical.com
Country: China
ProdList: 44801
Advantage: 61

Nanjing Habo Medical Technology Co., Ltd.

Tel: 025-85760892 13376080562
Fax: 025-85766769
Email: sales@habotech.com
Country: China
ProdList: 886
Advantage: 60

Shandong Xiya Chemical Co., Ltd

Tel: 13355009207 13355009207
Fax: 0539-6365991
Email: 3007715519@qq.com
Country: China
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Tianjin heowns Biochemical Technology Co., Ltd.

Tel: 400 638 7771
Email: sales@heowns.com
Country: China
ProdList: 14435
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Maya High Purity Chemicals

Tel: +86 (573) 82222445 (0)18006601000 452520369
Fax: +86 (573) 82222643
Email: sales@maya-r.com
Country: China
ProdList: 11707
Advantage: 57

Spectrum Chemical Manufacturing Corp.

Tel: 021-021-021-67601398-809-809-809 15221380277
Fax: 021-57711696
Email: marketing_china@spectrumchemical.com
Country: China
ProdList: 9658
Advantage: 60

62758-12-7, ETHYL ORANGERelated Search:

Benzenesulfonic acid Ethyl Orange, indicator grade, pure,Ethyl orange Benzenesulfonic acid, 4-[(4-diethylamino)phenylazo]-, potassium salt ETHYL ORANGE Methyl Orange N-ETHYL-4-AMINOAZOBENZENE N,N-Diethyl-1,4-phenylenediamine 4'-Aminoazobenzene-4-sulphonic acid Solvent Yellow 2 Solvent Yellow 56 4-ETHYLMETHYLAMINOAZOBENZENE

RESAZURINE REDOX INDICATOR

EthylorangeAcs98%

EthylOrangeSodium

Ethylorange Acs 98%

Ethyl Orange sodium salt, pure, 92%

Ethyl orange sodium salt, 92%, pure

Ethyl Orange sodium salt,4-(4-Diethylaminophenylazo)benzenesulfonic acid sodium salt

Ethyl Orange sodiuM salt, pure, 92% 25GR

Sodium 4-[[4-(diethylamino)phenyl]azo]benzenesulfonate

4-[[4-(diethylamino)phenyl]azo]-benzenesulfonicacisodiumsalt

Benzenesulfonicacid,4-[[4-(diethylamino)phenyl]azo]-,sodiumsalt

LABOTEST-BB LT00452773

4-DIETHYLAMINOAZOBENZENE-4'-SULFONIC ACID SODIUM SALT

4-[P-(DIETHYLAMINO)PHENYLAZO]BENZENESULFONIC ACID

4-[4-(DIETHYLAMINO)PHENYLAZO]BENZENESULFONIC ACID, SODIUM SALT

sodium p-[[p-(diethylamino)phenyl]azo]benzenesulphonate

Diethyl orange

ETHYL ORANGE, SODIUM SALT, INDICATOR GRA DE

ETHYL ORANGE

ETHYL ORANGE SODIUM SALT

Benzenesulfonic Acid, P-[[p-(diethylamino)phenyl]azo]-, Sodium Salt

Ethyl Orange sodium salt, 92%, indicator

Ethyl orange sodium salt, indicator

Ethyl orange indicator

Ethyl Orange (sodium), indicator grade

62758-12-7

C2H52NC6H4NNC6H4SO3Na

C16H18N3NaO3S

C16H18N3O3SNa

Indicator (pH)

pH Indicators

Organics

Analytical Chemistry

Indicator (pH)

pH Indicators

Azo