Tolnaftate EP Impurity B

Name: Tolnaftate EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-028436

About Tolnaftate EP Impurity B

Tolnaftate EP Impurity B (CAS 127084-74-6) is a pharmacopeial impurity of Tolnaftate offered by Vaqora Chemicals. The compound has the formula C21H14O2S, corresponding to a molecular weight of 330.4 g/mol. Its systematic (IUPAC) name is dinaphthalen-2-yloxymethanethione. Alternative names: Tolnaftate Impurity B and Tolnaftate - Impurity B.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

Pharmaceutical QC and development laboratories use this impurity standard of Tolnaftate to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Tolnaftate

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

Tolnaftate impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Tolnaftate EP Impurity B
Catalogue No.	VQ-028436
CAS Number	127084-74-6
IUPAC name	dinaphthalen-2-yloxymethanethione
Molecular formula	C₂₁H₁₄O₂S
Molecular weight	330.4 g/mol
Exact mass	330.0715
Grade	Reference Standard
HSN code	38229090
InChIKey	GJSWKYAOWCAEBJ-UHFFFAOYSA-N
SMILES	C1=CC=C2C=C(C=CC2=C1)OC(=S)OC3=CC4=CC=CC=C4C=C3
PubChem CID	2754317

Physical properties
Physical form	Solid
LogP (XLogP3)	6.7
H-bond donors / acceptors	0 / 3
TPSA	50.6 Å²
Synonyms	Tolnaftate Impurity B, Tolnaftate - Impurity B, O,O-Di-2-Naphthalenyl Ester Carbonothioic Acid, O,O-Di(naphthalen-2-yl) carbonothioate, O,O-Dinaphthalen-2-yl carbonothioate, Carbonothioic acid, O,O-di-2-naphthalenyl ester

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 Tolnaftate EP Impurity B?

The CAS Registry Number of Tolnaftate EP Impurity B is 127084-74-6. It is also known as Tolnaftate Impurity B, Tolnaftate - Impurity B, O,O-Di-2-Naphthalenyl Ester Carbonothioic Acid.

What is the molecular formula and molecular weight of Tolnaftate EP Impurity B?

Tolnaftate EP Impurity B has the molecular formula C21H14O2S and a molecular weight of 330.4 g/mol. Its IUPAC name is dinaphthalen-2-yloxymethanethione.

What is Tolnaftate EP Impurity B used for?

Tolnaftate EP Impurity B is supplied as a characterised reference material related to Tolnaftate. 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 Tolnaftate EP Impurity B can I order?

We supply Tolnaftate EP Impurity B in Reference Standard grade, 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 Tolnaftate EP Impurity B?

Yes. Every lot of Tolnaftate EP Impurity 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 Tolnaftate EP Impurity B be shipped internationally?

Yes. We export Tolnaftate EP Impurity B worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.