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Cresyl Violet acetate

Cat No.:V34043 Purity: ≥98%
Cresyl Violet acetate is a red fluorescent stain used to stain neurons.
Cresyl Violet acetate
Cresyl Violet acetate Chemical Structure CAS No.: 10510-54-0
Product category: New2
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
500mg
Other Sizes

Other Forms of Cresyl Violet acetate:

  • Cresyl Violet perchlorate
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
Cresyl Violet acetate is a red fluorescent stain used to stain neurons.
Cresyl Violet acetate (CAS# 10510-54-0) is a synthetic cationic oxazine dye with the molecular formula C₁₈H₁₅N₃O₃ and a molecular weight of 321.34 g/mol. It is a red fluorescent stain primarily used for staining nerve cells, tissue spinal cord sections, brain paraffin sections, cells, and granules. The compound is also used to stain cartilage and mast cell granules.
Biological Activity I Assay Protocols (From Reference)
Targets
Cresyl Violet acetate does not target a specific biological receptor or enzyme. Instead, it functions as a histological and fluorescent stain that binds to nucleic acids and other cellular components. Its fluorescence properties make it useful for imaging applications in neuroscience and pathology. The dye can also be used to study cellular morphology and neuronal degeneration.
ln Vitro
In sections stained with PV and cresyl violet acetate, the estimated total number of SG neurons was 27,485±3251 and 26,705±1823, respectively. Between them, there is no discernible difference (p=0.552). For this reason, when assessing neuronal numbers, cresyl violet acetate staining is more straightforward and economical. PV is a laborious technique that restricts its quantitative application even if it gives functional status and staining spiral ganglion neurons (SGN) with increased intensity. Using the probe to determine the overall RC volume, the average RC volume in sections immunostained with PV and cresyl violet acetate was 1.82±0.33 mm3 and 2.162±0.35 mm3, respectively. Using nucleator probes, the volume of neurons was calculated to be 3487.63±951 μm3 in sections stained with PV immunostained tissue and 3740.1±784 μm3 in sections stained with cresyl violet acetate. The volumes of neuronal nuclei in sections stained with PV immunostained and cresyl violet acetate were determined to be 126.51±33 μm3 and 131.68±50 μm3, respectively, according to research using nucleation probes [1].
In vitro, Cresyl Violet acetate is used as a staining agent for various biological specimens. It exhibits red fluorescence when bound to cellular structures, allowing for visualization under a fluorescence microscope. It is soluble in water (1 mg/mL) and has a pH of approximately 3 (10 g/L, H₂O, 20°C). The compound is also used in cell culture applications with low endotoxin levels.
ln Vivo
In vivo, Cresyl Violet acetate is not typically used as a therapeutic agent but is employed in animal studies for histological examination of nervous tissue. It is used to stain neurons in tissue sections from experimental animals to assess neuronal health, degeneration, and morphology. Its fluorescent properties enable detailed imaging of brain and spinal cord structures in ex vivo tissue samples.
Enzyme Assay
For in vitro staining protocols, Cresyl Violet acetate is typically prepared as a 0.1-1% solution in water or buffer. Tissue sections or cells are incubated with the stain for 1-10 minutes, depending on the desired intensity. Excess stain is removed by washing with distilled water or buffer. Stained samples are then dehydrated, cleared, and mounted for microscopic examination.
Cell Assay
For in vitro cell-based assays, Cresyl Violet acetate is used to stain cultured neurons or other cell types. Cells are grown on coverslips or chamber slides, fixed with paraformaldehyde or methanol, and incubated with the dye solution. After washing, cells are examined under a fluorescence microscope using appropriate excitation/emission filters. The stain can also be used in combination with other fluorescent markers for multiplex imaging.
Animal Protocol
For in vivo animal experiments, Cresyl Violet acetate is used for post-mortem histological analysis. Animals are euthanized, and tissues (such as brain or spinal cord) are harvested, fixed, embedded in paraffin, and sectioned. Tissue sections are deparaffinized, rehydrated, and stained with Cresyl Violet acetate. Stained sections are then examined under a microscope to assess neuronal morphology and pathology.
ADME/Pharmacokinetics
Pharmacokinetic data for Cresyl Violet acetate are not applicable, as it is not used as a therapeutic agent. The compound is a histological stain and is not administered systemically for pharmacological purposes. Its stability in solution has rarely been reported, and it is typically prepared fresh for staining applications.
Toxicity/Toxicokinetics
Toxicological data for Cresyl Violet acetate are limited. As a synthetic dye, it may cause irritation upon contact with skin or eyes. It is incompatible with strong oxidizing agents. The compound is classified as a research-grade reagent and is not for human therapeutic use. Standard laboratory safety practices should be followed when handling the dye.
References

[1]. Comparison of unbiased stereological estimation of total number of cresyl violet stained neurons and parvalbumin positive neurons in the adult human spiral ganglion. J Chem Neuroanat. 2017 Jun 23. pii: S0891-0618(17)30037-6.

Additional Infomation
Cresyl Violet acetate is a research-use only compound and has not been approved for clinical applications. It is also known as cresyl violet acetate or CVA. Its molecular weight is 321.33, and its formula is C₁₈H₁₅N₃O₃. The compound has a melting point of 140-143°C. It is available from various research chemical suppliers for histological and fluorescent staining applications.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C16H11N3O.C2H4O2
Molecular Weight
321.33
Exact Mass
321.111
CAS #
10510-54-0
Related CAS #
Cresyl Violet perchlorate;41830-80-2
PubChem CID
82686
Appearance
Brown to black solid powder
Boiling Point
468.3ºC
Melting Point
140-143 °C(lit.)
Flash Point
237ºC
Vapour Pressure
6.07E-09mmHg at 25°C
LogP
3.919
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
5
Rotatable Bond Count
0
Heavy Atom Count
24
Complexity
522
Defined Atom Stereocenter Count
0
InChi Key
UEWSHLFAYRXNHZ-UHFFFAOYSA-N
InChi Code
InChI=1S/C16H11N3O.C2H4O2/c17-9-5-6-13-14(7-9)20-15-8-12(18)10-3-1-2-4-11(10)16(15)19-13;1-2(3)4/h1-8,18H,17H2;1H3,(H,3,4)
Chemical Name
(9-aminobenzo[a]phenoxazin-5-ylidene)azanium;acetate
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture and light.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~1 mg/mL (~3.11 mM)
H2O : < 0.1 mg/mL
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.1121 mL 15.5603 mL 31.1207 mL
5 mM 0.6224 mL 3.1121 mL 6.2241 mL
10 mM 0.3112 mL 1.5560 mL 3.1121 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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