Crystal violet

Name: Crystal violet
Brand: Vaqora Chemicals
SKU: VQ-000546

About Crystal violet

Vaqora Chemicals supplies Crystal violet in Microscopy grade, a biological stain registered under CAS number 548-62-9 at a purity of 96–100.5%. The compound has the formula C25H30ClN3, corresponding to a molecular weight of 408.0 g/mol. Its systematic (IUPAC) name is [4-[bis[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium chloride. Alternative names: Baszol Violet 57 and gentian violet.

The material typically appears as dark green powder to crystals. Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for histology and cytology staining, microscopy, clinical laboratories and dyes and pigments manufacture. Buyers come mainly from academic and industrial research, diagnostics and biotechnology and agrochemical production.

We offer Crystal violet in 25 g, 100 g, 500 g and 1 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Dyes & pigments manufacture

Industries

Specifications & identifiers

Chemical identifiers
Product name	Crystal violet
Catalogue No.	VQ-000546
CAS Number	548-62-9
IUPAC name	[4-[bis[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium chloride
Molecular formula	C₂₅H₃₀ClN₃
Molecular weight	408 g/mol
Exact mass	407.2128
Grade	Microscopy
Purity / assay	96–100.5%
HSN code	32041349
InChIKey	ZXJXZNDDNMQXFV-UHFFFAOYSA-M
SMILES	CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=CC=C(C=C3)N(C)C.[Cl-]
PubChem CID	11057

Physical properties
Physical form	Crystalline
Appearance	Dark green powder to crystals
H-bond donors / acceptors	0 / 3
TPSA	9.5 Å²
UN number	UN 3077
Synonyms	Baszol Violet 57, gentian violet, methylrosanilinium chloride, Aniline Violet, Hexamethyl Violet, Methyl Violet 10B, Methylrosaniline chloride, Pyoktanin, Avermin, Vianin, Bismuth Violet, Hexamethylpararosaniline chloride

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H318Causes serious eye damage
H351Suspected of causing cancer
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P203, P264, P264 + P265, P270, P273, P280, P301 + P317, P305 + P354 + P338, P317, P318, P330, P391, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 548-62-9

ACS / Spectroscopy

Crystal violet, ACS, for spectroscopy ≥90.00%

CAS: 548-62-9
Formula: C₂₅H₃₀ClN₃
MW: 408 g/mol

VQ-046784

AR

Crystal violet, GR

CAS: 548-62-9
Formula: C₂₅H₃₀ClN₃
MW: 408 g/mol

VQ-000548

Synthesis

Crystal violet, solution

CAS: 548-62-9
Formula: C₂₅H₃₀ClN₃
MW: 408 g/mol

VQ-003537

Microscopy

Gentian violet

CAS: 548-62-9
Formula: C₂₅H₃₀ClN₃
MW: 408 g/mol

VQ-000595

AR

Gentian violet, GR

CAS: 548-62-9
Formula: C₂₅H₃₀ClN₃
MW: 408 g/mol

VQ-000596

Gention violet, alcoholic, solution

CAS: 548-62-9
Formula: C₂₅H₃₀ClN₃
MW: 408 g/mol

VQ-003561

Gention violet, aqeous solution

CAS: 548-62-9
Formula: C₂₅H₃₀ClN₃
MW: 408 g/mol

VQ-003562

Neisser's stain B

CAS: 548-62-9
Formula: C₂₅H₃₀ClN₃
MW: 408 g/mol

VQ-003606

Frequently asked questions

What is the CAS number of Crystal violet?

The CAS Registry Number of Crystal violet is 548-62-9. It is also known as Baszol Violet 57, gentian violet, methylrosanilinium chloride.

What is the molecular formula and molecular weight of Crystal violet?

Crystal violet has the molecular formula C25H30ClN3 and a molecular weight of 408 g/mol. Its IUPAC name is [4-[bis[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium chloride.

Which grade and pack sizes of Crystal violet can I order?

We supply Crystal violet in Microscopy (96–100.5%) grade, in 25 g, 100 g, 500 g, 1 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Crystal violet?

Yes. Every lot of Crystal violet is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Crystal violet be shipped internationally?

Yes. Crystal violet is classified as hazardous (UN 3077), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.