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Sigma-Aldrich Methyl Orange A.C.S. Reage
List Price $97.80 Your Price $97.80
Sigma-Aldrich Methyl Orange A.C.S. Reagent - SIAL (Additional S&H Or Hazmat Fees May Apply)
NETA PART: SIAL-114510-25G
MFG.PART: 114510-25G
UNSPSC: 12171500
Manufacturer: Sigma-Aldrich
grade
ACS reagent
Quality Level
200
form
powder
composition
Dye content, 85%
technique(s)
titration: suitable
color
orange
pH
3.0-4.4, pink to yellow
visual transition interval
3.2-4.4, red to yellow
mp
>300 °C
λmax
505 nm
Related Categories
Hematology Stains
General description
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.
Application
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.
Biochem/physiol Actions
Methyl Orange is an azo dye which works as a pH indicator.[1][2]
pictograms
GHS06
signalword
Danger
hcodes
H301
pcodes
P301 + P330 + P331 + P310
Hazard Classifications
Acute Tox. 3 Oral
wgk_germany
WGK 3
PPE
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
| SKU | SIAL-114510-25G |
|---|---|
| Supplier Part Number | 114510-25G |
| UM | EA |
| UNSPSC | 12171500 |
| Manufacturer | Sigma-Aldrich |
| Temperature | room temp |
| Refrigerated-Frozen | N |
| ProductLine | SIAL |
| Qty | 1 |
| MinOrderQty | 1 |
| Weight | 10.000000 |
| Lead Time | 9 |
| Hazardous | Y |
| CAS Number | 547-58-0 |
| Energy Star | No |
| Green | No |
| Controlled | N |