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  4. Naphthoresorcinol

Naphthoresorcinol  (Synonyms: 1,3-Dihydroxynaphthalene)

Cat. No.: HY-D0165 Purity: 99.49%
SDS COA Handling Instructions

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Naphthoresorcinol (1,3-Dihydroxynaphthalene) is a fluorescent dye (λex=330 nm, λem=380 nm) that can react with the NPPD (a tracer) and concentrated HCl and develop a red color. Naphthoresorcinol could be used as a background electrolyte (BGE) to determine the carbohydrates.

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

Naphthoresorcinol Chemical Structure

Naphthoresorcinol Chemical Structure

CAS No. : 132-86-5

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Based on 1 publication(s) in Google Scholar

Naphthoresorcinol Related Antibodies

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Description

Naphthoresorcinol (1,3-Dihydroxynaphthalene) is a fluorescent dye (λex=330 nm, λem=380 nm) that can react with the NPPD (a tracer) and concentrated HCl and develop a red color. Naphthoresorcinol could be used as a background electrolyte (BGE) to determine the carbohydrates[1][2][3].

Molecular Weight

160.17

Formula

C10H8O2
CAS No.
Appearance

Solid

Color

Light yellow to brown

Emission (Em)

380
Excitation (Ex)

330
SMILES

OC1=C2C=CC=CC2=CC(O)=C1
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, protect from light

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

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (624.34 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 6.2434 mL 31.2168 mL 62.4337 mL
5 mM 1.2487 mL 6.2434 mL 12.4867 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

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  • Dilution Calculator

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

Mass
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (15.61 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (15.61 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).

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

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.60%

SDS (418 KB)

COA (250 KB) HNMR (121 KB) RP-HPLC (95 KB)

Handling Instructions (2659 KB)
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 6.2434 mL 31.2168 mL 62.4337 mL 156.0842 mL
5 mM 1.2487 mL 6.2434 mL 12.4867 mL 31.2168 mL
10 mM 0.6243 mL 3.1217 mL 6.2434 mL 15.6084 mL
15 mM 0.4162 mL 2.0811 mL 4.1622 mL 10.4056 mL
20 mM 0.3122 mL 1.5608 mL 3.1217 mL 7.8042 mL
25 mM 0.2497 mL 1.2487 mL 2.4973 mL 6.2434 mL
30 mM 0.2081 mL 1.0406 mL 2.0811 mL 5.2028 mL
40 mM 0.1561 mL 0.7804 mL 1.5608 mL 3.9021 mL
50 mM 0.1249 mL 0.6243 mL 1.2487 mL 3.1217 mL
60 mM 0.1041 mL 0.5203 mL 1.0406 mL 2.6014 mL
80 mM 0.0780 mL 0.3902 mL 0.7804 mL 1.9511 mL
100 mM 0.0624 mL 0.3122 mL 0.6243 mL 1.5608 mL
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Naphthoresorcinol Related Classifications

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  • 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.

Keywords:

Naphthoresorcinol132-86-51,3-DihydroxynaphthaleneFluorescent DyefluorescentdyeNPPDtracerHClredcolorbackgroundelectrolyteBGEcarbohydratesInhibitorinhibitorinhibit

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