114510

Methyl Orange

ACS reagent, Dye content 85 %

• Sinonimo/i: 4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid sodium salt, Acid Orange 52, Helianthin, Orange III
• Formula empirica (notazione di Hill): C₁₄H₁₄N₃NaO₃S
• Numero CAS: 547-58-0
• Peso molecolare: 327.33
• Colour Index: 13025
• Beilstein: 4732884
• Numero CE: 208-925-3
• Numero MDL: MFCD00007502
• Codice UNSPSC: 12171500
• ID PubChem: 24847177
• NACRES: NA.47

Proprietà

• Grado: ACS reagent
• Forma fisica: powder
• Composizione: Dye content, 85%
• tecniche: titration: suitable
• Colore: orange
• pH: 3.0-4.4, pink to yellow
• visual transition interval: 3.2-4.4, red to yellow
• Punto di fusione: >300 °C
• λmax: 505 nm
• applicazioni: diagnostic assay manufacturing; hematology; histology
• Temperatura di conservazione: room temp
• Stringa SMILE: [Na+].CN(C)c1ccc(cc1)\N=N\c2ccc(cc2)S([O-])(=O)=O
• InChI: 1S/C14H15N3O3S.Na/c1-17(2)13-7-3-11(4-8-13)15-16-12-5-9-14(10-6-12)21(18,19)20;/h3-10H,1-2H3,(H,18,19,20);/q;+1/p-1/b16-15+;; STZCRXQWRGQSJD-GEEYTBSJSA-M

Descrizione

Descrizione generale

Methyl orange (C.I. 13025) is the sodium salt of p-dimethylaminoazobenzenesulfonic acid.It is an orange-colored synthetic dye, which changes color depending on the pH of the solution. It develops a red color in acidic solution and yellow color in basic solution.

Applicazioni

Methyl orange is used as a-

• pH indicator in the cell sap
• counterstain to crystal violet in staining pollen tubes
• component of a polychrome histological stain
• solution indicator, such as in assays of oxalic and malonic acids
• in other biomedical applications that include use in film dosimeters and as a reagent for the assay of bromide ions.

Azioni biochim/fisiol

Methyl Orange is an azo dye which works as a pH indicator.

Informazioni sulla sicurezza

• Pittogrammi: GHS06
• Avvertenze: Danger
• Indicazioni di pericolo: H301
• Consigli di prudenza: P301 + P330 + P331 + P310
• Classi di pericolo: Acute Tox. 3 Oral
• Codice della classe di stoccaggio: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable
• Dispositivi di protezione individuale: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges