Ponceau 4R (Synonyms: Acid Red 18; New Coccine)

Cat. No.: HY-D0193 Purity: 99.80%: FAQs
Data Sheet SDS COA Handling Instructions

Ponceau 4R is a synthetic colourant that may be used as a food colouring.

For research use only. We do not sell to patients.

Ponceau 4R Chemical Structure

CAS No. : 2611-82-7

Size	Price	Stock	Quantity

Free Sample (0.1 - 0.5 mg)		Apply Now
Solution
10 mM * 1 mL in DMSO	USD 55	In-stock	Estimated Time of Arrival: December 31
Solid + Solvent
10 mM * 1 mL ready for reconstitution	USD 55	In-stock	Estimated Time of Arrival: December 31
Solid
500 mg	USD 50	In-stock	Estimated Time of Arrival: December 31
1 g	USD 60	In-stock	Estimated Time of Arrival: December 31
5 g		Get quote
10 g		Get quote

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Biological Activity
Purity & Documentation
Customer Review

Description

Ponceau 4R is a synthetic colourant that may be used as a food colouring. onceau 4R is a strawberry red azo dye which can be used in a variety of food products, and is usually synthesized fromaromatic hydrocarbons; it is stable to light, heat, and acid but fades in the presence of ascorbic acid.

Molecular Weight

604.47

Appearance

Solid

Formula

C₂₀H₁₁N₂Na₃O₁₀S₃

CAS No.

2611-82-7

SMILES

O=S(C1=C2C(/N=N/C3=C4C=CC=CC4=C(S(=O)(O[Na])=O)C=C3)=C(O)C=CC2=CC(S(=O)(O[Na])=O)=C1)(O[Na])=O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

Solvent & Solubility

In Vitro:

H₂O : 25 mg/mL (41.36 mM; Need ultrasonic)

DMSO : 10 mg/mL (16.54 mM; ultrasonic and warming and heat to 60°C)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	1.6543 mL	8.2717 mL	16.5434 mL
5 mM	0.3309 mL	1.6543 mL	3.3087 mL
10 mM	0.1654 mL	0.8272 mL	1.6543 mL

*Please refer to the solubility information to select the appropriate solvent.

In Vivo:

1.

Add each solvent one by one: PBS
Solubility: 50 mg/mL (82.72 mM); Clear solution; Need ultrasonic
2.

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% saline
Solubility: ≥ 1 mg/mL (1.65 mM); Clear solution
3.

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in saline)
Solubility: ≥ 1 mg/mL (1.65 mM); Clear solution

*All of the co-solvents are available by MCE.

Purity & Documentation

Purity: 99.80%

Select Batch:

Data Sheet (253 KB) SDS (393 KB)

COA (260 KB) HNMR (178 KB) LCMS (348 KB)

Handling Instructions (2659 KB)

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Molarity Calculator
Dilution Calculator

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

The dilution calculator equation

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Keywords:

Ponceau 4R2611-82-7Acid Red 18 New CoccineAcid Red18Acid Red-18Fluorescent DyeInhibitorinhibitorinhibit

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Ponceau 4R (Synonyms: Acid Red 18; New Coccine)

Biological Activity

Purity & Documentation

Customer Review

Molarity Calculator

Dilution Calculator