915-67-3
Product Name:
Acid Red 27
Formula:
C20H11N2Na3O10S3
Synonyms:
3-Hydroxy-4-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-2,7-disulfonate trisodium salt;Acid Red 27;Azorubin S;FD & C Red Dye No. 2
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Amaranth is a dark red to dark purple powder. Almost no odor. Tastes salty. pH (1% solution in water) approximately 10.8. Used to dye wool and silk bright bluish-red from an acid bath. |
|---|---|
| Color/Form | Dark, reddish-brown powder |
| Melting Point | greater than 572 °F (NTP, 1992) |
| Solubility | 10 to 50 mg/mL at 73 °F (NTP, 1992) |
| Density | 1.5 (NTP, 1992) - Denser than water; will sink |
| Stability/Shelf Life | Aqueous solution is stable toward light. |
| Decomposition | When heated to decomposition it emits toxic fumes of /nitrogen and sulfur oxides/. |
| Other Experimental Properties | Discharge white by hydrosulfite on wool and silk |
| Chemical Classes | Dyes -> Azo Dyes |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P337+P313:IF eye irritation persists: Get medical advice/attention. |
COMPUTED DESCRIPTORS
| Molecular Weight | 604.5 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 12 |
| Rotatable Bond Count | 2 |
| Exact Mass | 603.92689092 g/mol |
| Monoisotopic Mass | 603.92689092 g/mol |
| Topological Polar Surface Area | 242 Ų |
| Heavy Atom Count | 38 |
| Formal Charge | 0 |
| Complexity | 1080 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 4 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Amaranth is a dark red to dark purple powder. Almost no odor. Tastes salty. pH (1% solution in water) approximately 10.8. Used to dye wool and silk bright bluish-red from an acid bath.