1. Dye Reagents
  2. Rhodamine B

Rhodamine B (Synonyms: Basic Violet 10; Brilliant Pink B; Rhodamine O; Tetraethylrhodamine)

Cat. No.: HY-Y0016 Purity: >98.0%
Handling Instructions

Rhodamine B is a staining fluorescent dye, commonly used for dyeing textiles, paper, soap, leather, and drugs.

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

Rhodamine B Chemical Structure

Rhodamine B Chemical Structure

CAS No. : 81-88-9

Size Price Stock Quantity
Free Sample (0.5-1 mg)   Apply Now  
10 mM * 1 mL in DMSO USD 66 In-stock
Estimated Time of Arrival: December 31
100 mg USD 60 In-stock
Estimated Time of Arrival: December 31
1 g USD 96 In-stock
Estimated Time of Arrival: December 31
5 g   Get quote  
10 g   Get quote  

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Customer Review

Based on 3 publication(s) in Google Scholar

Top Publications Citing Use of Products
  • Biological Activity

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Rhodamine B is a staining fluorescent dye, commonly used for dyeing textiles, paper, soap, leather, and drugs.

In Vitro

Rhodamine B induces a concentration-dependent reduction of root meristem cells of A. cepa. mitotic activity. Rhodamine B induces various nuclear aberrations in A. cepa. root cells. In the 100 and 200 ppm rhodamine B groups, the frequencies of NBUDs and BN surpass those of the positive control (MMS) group. Rhodamine B-induced changes of H2O2 (a) and MDA (b) level increase in a concentration-dependent manner in A. cepa. roots[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight









Room temperature in continental US; may vary elsewhere.


4°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

Solvent & Solubility
In Vitro: 

H2O : 100 mg/mL (208.76 mM; Need ultrasonic)

DMSO : 6 mg/mL (12.53 mM; Need ultrasonic and warming)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.0876 mL 10.4382 mL 20.8764 mL
5 mM 0.4175 mL 2.0876 mL 4.1753 mL
10 mM 0.2088 mL 1.0438 mL 2.0876 mL
*Please refer to the solubility information to select the appropriate solvent.
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  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

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

Mass   Concentration   Volume   Molecular Weight *
= × ×

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2


Rhodamine BBasic Violet 10 Brilliant Pink B Rhodamine O TetraethylrhodamineBasic Violet10Basic Violet-10OthersInhibitorinhibitorinhibit

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