Skip to Content
Merck
All Photos(4)

Key Documents

A1016

Sigma-Aldrich

Amaranth

Dye content 85-95 %, Powder

Synonym(s):

Acid Red 27, Azorubin S, FD & C Red Dye No. 2

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C20H11N2Na3O10S3
CAS Number:
Molecular Weight:
604.47
Colour Index Number:
16185
Beilstein:
4122311
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

product name

Amaranth, Dye content 85-95 %

form

powder

composition

Dye content, 85-95%

technique(s)

microbe id | staining: suitable

color

brown to red-brown

pH

9.65 (28 °C, - OECD Test Guideline 122 - alkaline)

mp

>350 °C (at 966.25 hPa)

solubility

H2O: 10 mg/mL

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].[Na+].Oc1c(N=Nc2ccc(c3ccccc23)S([O-])(=O)=O)c4ccc(cc4cc1S([O-])(=O)=O)S([O-])(=O)=O

InChI

1S/C20H14N2O10S3.3Na/c23-20-18(35(30,31)32)10-11-9-12(33(24,25)26)5-6-13(11)19(20)22-21-16-7-8-17(34(27,28)29)15-4-2-1-3-14(15)16;;;/h1-10,23H,(H,24,25,26)(H,27,28,29)(H,30,31,32);;;/q;3*+1/p-3

InChI key

WLDHEUZGFKACJH-UHFFFAOYSA-K

Looking for similar products? Visit Product Comparison Guide

Application

Amaranth has been used as a dye for the microscopic visualization of crop contraction in blowflies. It has been used in the electrophoresis gel to track the migration front of the electrode buffer.

Biochem/physiol Actions

Amaranth is an azo dye which is mainly used in the the beverage and food industries. It is also considered as an endocrine disruptor.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

417.2 °F - closed cup

Flash Point(C)

214 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Genotypic and Phenotypic Comparisons of Chromosomal Types within an Indigenous Soil Population of Rhizobium leguminosarum bv. trifolii.
Leung K, et al.
Applied and Environmental Microbiology, 60, 416-416 (1994)
Effect of serotonin and calcium on the supercontractile muscles of the adult blowfly crop.
Liscia A, et al.
Journal of Insect Physiology, 58, 356-356 (2012)
Electrochemical and sonoelectrochemical processes applied to amaranth dye degradation.
Steter JR, et al.
Chemosphere, 117, 200-200 (2014)
S Nadupalli et al.
The journal of physical chemistry. A, 115(27), 7948-7954 (2011-06-09)
The reaction mechanism of the oxidation of Amaranth dye (2-hydroxy-1-(4-sulfonato-1-naphthylazo) naphthalene-3,6-disulfonate) with hypochlorite under varied pH conditions was elucidated by a kinetic approach. Under excess concentration of oxidant, the reaction followed pseudo-first-order kinetics with respect to Amaranth, and the oxidation
Guowen Zhang et al.
Food chemistry, 136(2), 442-449 (2012-11-06)
The mechanism of interaction between food dye amaranth and human serum albumin (HSA) in physiological buffer (pH 7.4) was investigated by fluorescence, UV-vis absorption, circular dichroism (CD), and Fourier transform infrared (FT-IR) spectroscopy. Results obtained from analysis of fluorescence spectra

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service