Neisser's stain B

Name: Neisser's stain B
Brand: Vaqora Chemicals
SKU: VQ-003606

About Neisser's stain B

Listed under CAS 548-62-9, Neisser's stain B is a diagnostic reagent available from Vaqora Chemicals. The compound has the formula C25H30ClN3, corresponding to a molecular weight of 408.0 g/mol. The IUPAC name is [4-[bis[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium chloride. Alternative names: Crystal violet and gentian violet.

It is supplied as a liquid. Store in a cool, well-ventilated place, away from sources of ignition, with the container tightly sealed. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

Typical applications include clinical chemistry, diagnostic assays and pathology laboratories. Buyers come mainly from academic and industrial research and diagnostics and biotechnology.

Standard pack sizes are 125 mL, 500 mL and 5 L, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Clinical chemistry
Diagnostic assays
Pathology laboratories

Industries

Specifications & identifiers

Chemical identifiers
Product name	Neisser's stain B
Catalogue No.	VQ-003606
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
HSN code	38229090
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	Liquid
Appearance	Liquid
H-bond donors / acceptors	0 / 3
TPSA	9.5 Å²
Synonyms	Crystal violet, 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

Microscopy

Crystal violet

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

VQ-000546

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

Frequently asked questions

What is the CAS number of Neisser's stain B?

The CAS Registry Number of Neisser's stain B is 548-62-9. It is also known as Crystal violet, gentian violet, methylrosanilinium chloride.

What is the molecular formula and molecular weight of Neisser's stain B?

Neisser's stain B 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 Neisser's stain B can I order?

We supply Neisser's stain B, in 125 mL, 500 mL, 5 L packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Neisser's stain B?

Yes. Every lot of Neisser's stain B 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 Neisser's stain B be shipped internationally?

Yes. Neisser's stain B is classified as hazardous, 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.