6-Benzyl-2-thiouracil

Name: 6-Benzyl-2-thiouracil
Brand: Vaqora Chemicals
SKU: VQ-049914

About 6-Benzyl-2-thiouracil

Listed under CAS 6336-50-1, 6-Benzyl-2-thiouracil is a process intermediate or related compound of Fluorescein available from Vaqora Chemicals. Formula C11H10N2OS, molecular weight 218.28 g/mol. Systematically, it is named 6-benzyl-2-sulfanylidene-1H-pyrimidin-4-one. Common synonyms include Basdene and 6-benzyl-2-mercaptopyrimidin-4(3H)-one.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Process chemists and analysts use it when developing synthetic routes to Fluorescein, tracking process-related impurities and validating analytical methods. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer 6-Benzyl-2-thiouracil in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Fluorescein

View every impurity, metabolite and intermediate we list for Fluorescein.

Fluorescein impurities

Specifications & identifiers

Chemical identifiers
Product name	6-Benzyl-2-thiouracil
Catalogue No.	VQ-049914
CAS Number	6336-50-1
IUPAC name	6-benzyl-2-sulfanylidene-1H-pyrimidin-4-one
Molecular formula	C₁₁H₁₀N₂OS
Molecular weight	218.28 g/mol
Exact mass	218.0514
HSN code	2933
InChIKey	PNXBXCRWXNESOV-UHFFFAOYSA-N
SMILES	C1=CC=C(C=C1)CC2=CC(=O)NC(=S)N2
PubChem CID	685814

Physical properties
Physical form	Solid
LogP (XLogP3)	1.6
H-bond donors / acceptors	2 / 2
TPSA	73.2 Å²
Synonyms	Basdene, 6-benzyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidin-4-one, 6-benzyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one, 6-benzyl-2-mercaptopyrimidin-4(3H)-one, 6-Benzyl-2-sulfanyl-4-pyrimidinol, 4(1H)-Pyrimidinone, 2,3-dihydro-6-(phenylmethyl)-2-thioxo-, 4(3H)-pyrimidinone, 2-mercapto-6-(phenylmethyl)-, 6-benzyl-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone, 6-Benzyl-2(1H)-thioxopyrimidine-4(3H)-one, Uracil, 6-benzyl-2-thio-, 2-Thioxo-6-benzyl-2,3-dihydro-4(1H)-pyrimidone, 6-Benzyl-1,2-dihydro-2-thioxopyrimidine-4(3H)-one

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, 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 6-Benzyl-2-thiouracil?

The CAS Registry Number of 6-Benzyl-2-thiouracil is 6336-50-1. It is also known as Basdene, 6-benzyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidin-4-one, 6-benzyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one.

What is the molecular formula and molecular weight of 6-Benzyl-2-thiouracil?

6-Benzyl-2-thiouracil has the molecular formula C11H10N2OS and a molecular weight of 218.28 g/mol. Its IUPAC name is 6-benzyl-2-sulfanylidene-1H-pyrimidin-4-one.

What is 6-Benzyl-2-thiouracil used for?

6-Benzyl-2-thiouracil is supplied as a characterised reference material related to Fluorescein. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of 6-Benzyl-2-thiouracil can I order?

We supply 6-Benzyl-2-thiouracil, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 6-Benzyl-2-thiouracil?

Yes. Every lot of 6-Benzyl-2-thiouracil 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 6-Benzyl-2-thiouracil be shipped internationally?

Yes. 6-Benzyl-2-thiouracil 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.