Auramine

Name: Auramine
Brand: Vaqora Chemicals
SKU: VQ-000475

About Auramine

Auramine is a biological stain in Microscopy grade carrying the CAS registry number 2465-27-2, specified at 80% purity. With the molecular formula C17H22ClN3, it has a molar mass of 303.8 g/mol. The IUPAC name is 4-[4-(dimethylamino)benzenecarboximidoyl]-N,N-dimethylaniline. Hydrochloride. Alternative names: Basic Yellow 2 and Pyoctaninum aureum.

The material typically appears as a yellow to green powder. Literature values give a melting point of above 250 °C (dec.). Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

Key uses span histology and cytology staining, microscopy, clinical laboratories and biological staining. Buyers come mainly from academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Standard pack sizes are 25 g, 100 g, 500 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Biological staining

Industries

Specifications & identifiers

Chemical identifiers
Product name	Auramine
Catalogue No.	VQ-000475
CAS Number	2465-27-2
IUPAC name	4-[4-(dimethylamino)benzenecarboximidoyl]-N,N-dimethylaniline;hydrochloride
Molecular formula	C₁₇H₂₂ClN₃
Molecular weight	303.8 g/mol
Exact mass	303.1502
Grade	Microscopy
Purity / assay	80%
HSN code	32041321
InChIKey	KSCQDDRPFHTIRL-UHFFFAOYSA-N
SMILES	CN(C)C1=CC=C(C=C1)C(=N)C2=CC=C(C=C2)N(C)C.Cl
PubChem CID	17170

Physical properties
Physical form	Powder
Appearance	Yellow to green powder
Melting point	>250 °C (dec.)
H-bond donors / acceptors	2 / 3
TPSA	30.3 Å²
UN number	UN 2811
Synonyms	4,4′-(Imidocarbonyl)bis(N,N-dimethylaniline) monohydrochloride, Basic Yellow 2, Pyoctaninum aureum, Auramine O, Aizen auramine, Mitsui Auramine O, C.I. Basic Yellow 2, Auramine Yellow, Auramine Extra, Auramine Pure, Calcozine Yellow OX, Auramine N

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H311Toxic in contact with skin
H319Causes serious eye irritation
H351Suspected of causing cancer
H411Toxic to aquatic life with long lasting effects

Precautionary statements: P203, P262, P264, P264 + P265, P270, P273, P280, P301 + P317, P302 + P352, P305 + P351 + P338, P316, P318, P321, P330, P337 + P317, P361 + P364, 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 2465-27-2

Auramine O, spezial

CAS: 2465-27-2
Formula: C₁₇H₂₂ClN₃
MW: 303.8 g/mol

VQ-000476

Frequently asked questions

What is the CAS number of Auramine?

The CAS Registry Number of Auramine is 2465-27-2. It is also known as 4,4′-(Imidocarbonyl)bis(N,N-dimethylaniline) monohydrochloride, Basic Yellow 2, Pyoctaninum aureum.

What is the molecular formula and molecular weight of Auramine?

Auramine has the molecular formula C17H22ClN3 and a molecular weight of 303.8 g/mol.

Which grade and pack sizes of Auramine can I order?

We supply Auramine in Microscopy (80%) grade, in 25 g, 100 g, 500 g, 1 kg, 5 x 1 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Auramine?

Yes. Every lot of Auramine 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 Auramine be shipped internationally?

Yes. Auramine is classified as hazardous (UN 2811), 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.