Specifications
- Purity
- ≥98% (HPLC)
- Appearance
- Yellow to beige to brown powder or cryst
- Identity
- 1H-NMR
Properties
- Solvents
- Soluble in water, alohol or DMSO.
Category: Non Fluorescent Detection & Chromogene Detection
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
Acid Yellow 36 is an industrial azo dye used in textiles, leather, and paper, but should not be used in foods or cosmetics due to toxicity concerns. Metanil yellow changes its color from red at 1.2 pH to yellow at pH 2.5 and has been used as a pH indicator. Metanil yellow is used as a counterstain for microscopy sections, for staining of leukocyte granules, or as a counterstain in PAS (periodic acid-Schiff)/iron-hematoxylin stained sections to increase contrast. Spectral Data: λmax ~415 nm.
| Synonyms | C.I. Acid Yellow 36 monosodium salt, C.I. 13065, Acid Leather Yellow R, Metanile Yellow O, Sodium m-sulfonate-p-phenylazodiphenylamine, Yellow No. 406, 3-(4-Anilinophenylazo)benzenesulfonic acid sodium salt |
|---|---|
| Purity | ≥98% (HPLC) |
| Appearance | Yellow to beige to brown powder or cryst |
| CAS-Number | 587-98-4 |
| Molecular Formula | C18H14N3NaO3S |
| Molecular Weight | 375.38 |
| Identity | 1H-NMR |
| Solvents | Soluble in water, alohol or DMSO. |
| Smiles | O=S([O-])(C1=CC(/N=N/C2=CC=C(NC3=CC=CC=C3)C=C2)=CC=C1)=O.[Na+] |
| InChi Key | PBAMGXBJWKWSID-UHFFFAOYSA-N |
| Shipping | AMBIENT |
| Short Term Storage | RT |
| Long Term Storage | RT |
| Handling Advice | Protect from light and moisture. |
| Use / Stability | Stable for at least 2 years after receipt when stored at RT. |
| Hazard statements | H318,H412 |
| Precautionary statements | P273 – P280 – P305 + P351 + P338 – P501 |
| GHS Symbol | GHS05 |
| Signal word | Danger |
| Transportation | Not dangerous goods |
| References | (1) E.B. Simmel, et al.; Stain Technol. 26, 25 (1951), (2) N. Roman, et al.; Stain Technol. 42, 199 (1967), (3) M.M. Everett & W.A. Miller; Stain Technol. 53, 315 (1978), (4) O.M. Prasad & P.B. Rastogi; Toxicol. Lett. 16, 103 (1983), (5) M. Opas & V.I. Kalnins; J. Microsc. 133, 291 (1984), (6) I. Quintero-Hunter, et al.; Biotech. Histochem. 66, 169 (1991), (7) J.A. Kiernan; Biotech. Histochem. 76, 261 (2001), (8) R.W. Sabnis; Handbook of Acid-Base Indicators (2007), (9) X. Liu, et al.; Food Addit. Contam. Part A Chem. Anal. Control Expo. Risk Assess. 28, 1315 (2011) |
| InChi | InChI=1S/C18H15N3O3S.Na/c22-25(23,24)18-8-4-7-17(13-18)21-20-16-11-9-15(10-12-16)19-14-5-2-1-3-6-14;/h1-13,19H,(H,22,23,24); |
| Quantity | 10 g, Bulk |

Nequinate