Acid Red 51
Synonym(s):2′,4′,5′,7′-Tetraiodofluorescein disodium salt;Acid Red 51;Iodoeosin
- CAS NO.：568-63-8
- Empirical Formula: C20H6I4Na2O5
- Molecular Weight: 879.86
- MDL number: MFCD00144257
- EINECS: 629-600-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:40
What is Acid Red 51?
What are the applications of Application
Erythrosin B sodium salt is a plant anatomy, keratin and mucus stain
Definition
ChEBI: Erythrosin B is an organic sodium salt that is the disodium salt of 2-(2,4,5,7-tetraiodo-6-oxido-3-oxo-8a,10a-dihydroxanthen-9-yl)benzoic acid. It has a role as a fluorescent dye. It contains an erythrosin(2-).
Properties of Acid Red 51
| form | Powder |
| color | Dark maroon |
| Water Solubility | Soluble in water, glycerin and methanol. |
| Sensitive | Light Sensitive & Hygroscopic |
| EPA Substance Registry System | Benzoic acid, 2-(6-hydroxy-2,4,5,7-tetraiodo-3-oxo-3H-xanthen-j9-yl)-, disodium salt (568-63-8) |
Safety information for Acid Red 51
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P330:Rinse mouth. |
Computed Descriptors for Acid Red 51
Acid Red 51 manufacturer
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