Thioflavin T

Name: Thioflavin T
Brand: Vaqora Chemicals
SKU: VQ-000720

About Thioflavin T

Thioflavin T is a biological stain in Puriss grade carrying the CAS registry number 2390-54-7. The compound has the formula C17H19ClN2S, corresponding to a molecular weight of 318.9 g/mol. Its systematic (IUPAC) name is 4-(3,6-dimethyl-1,3-benzothiazol-3-ium-2-yl)-N,N-dimethylaniline chloride. Alternative names: Basic Yellow 1 and Thioflavine T.

The material typically appears as a yellow to yellow-orange to gold powder. Its solubility is described as methanol: soluble1 mg/mL. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

Typical applications include histology and cytology staining, microscopy and clinical laboratories. Our customers for this product work in academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Vaqora Chemicals supplies Thioflavin T in 5 g, 25 g, 100 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories

Industries

Specifications & identifiers

Chemical identifiers
Product name	Thioflavin T
Catalogue No.	VQ-000720
CAS Number	2390-54-7
IUPAC name	4-(3,6-dimethyl-1,3-benzothiazol-3-ium-2-yl)-N,N-dimethylaniline chloride
Molecular formula	C₁₇H₁₉ClN₂S
Molecular weight	318.9 g/mol
Exact mass	318.0957
Grade	Puriss
HSN code	32041329
InChIKey	JADVWWSKYZXRGX-UHFFFAOYSA-M
SMILES	CC1=CC2=C(C=C1)[N+](=C(S2)C3=CC=C(C=C3)N(C)C)C.[Cl-]
PubChem CID	16953

Physical properties
Physical form	Powder
Appearance	Yellow to yellow-orange to gold powder
Solubility	Methanol: soluble1 mg/mL
H-bond donors / acceptors	0 / 3
TPSA	35.4 Å²
Synonyms	Basic Yellow 1, Thioflavine T, Acronol Yellow TC, C.I. Basic Yellow 1, Benzothiazolium, 2-[4-(dimethylamino)phenyl]-3,6-dimethyl-, chloride, 3,6-Dimethyl-2-dimethylaminophenylbenzothiazolium chloride, Benzothiazolium, 2-(p-(dimethylamino)phenyl)-3,6-dimethyl-, chloride, Benzothiazolium, 2-(4-(dimethylamino)phenyl)-3,6-dimethyl-, chloride, Benzothiazolium, 2-(4-(dimethylamino)phenyl)-3,6-dimethyl-, chloride (1:1), 2-(p-(dimethylamino)phenyl)-3,6-dimethylbenzothiazolium chloride, Benzothiazolium, 2-[4-(dimethylamino)phenyl]-3,6-dimethyl-, chloride (1:1), ThT (dye)

Safety & hazard information (GHS)

Corrosive

Toxic

Harmful / irritant

Environmental hazard

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H317May cause an allergic skin reaction
H318Causes serious eye damage
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P261, P264, P264 + P265, P270, P272, P273, P280, P301 + P316, P302 + P352, P305 + P354 + P338, P317, P321, P330, P333 + P317, P362 + 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

Frequently asked questions

What is the CAS number of Thioflavin T?

The CAS Registry Number of Thioflavin T is 2390-54-7. It is also known as Basic Yellow 1, Thioflavine T, Acronol Yellow TC.

What is the molecular formula and molecular weight of Thioflavin T?

Thioflavin T has the molecular formula C17H19ClN2S and a molecular weight of 318.9 g/mol. Its IUPAC name is 4-(3,6-dimethyl-1,3-benzothiazol-3-ium-2-yl)-N,N-dimethylaniline chloride.

Which grade and pack sizes of Thioflavin T can I order?

We supply Thioflavin T in Puriss grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Thioflavin T?

Yes. Every lot of Thioflavin T 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 Thioflavin T be shipped internationally?

Yes. Thioflavin T 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.