Phthalylsulfathiazole

Name: Phthalylsulfathiazole
Brand: Vaqora Chemicals
SKU: VQ-027471

About Phthalylsulfathiazole

Vaqora Chemicals supplies Phthalylsulfathiazole, an API reference standard registered under CAS number 85-73-4. The compound has the formula C17H13N3O5S2, corresponding to a molecular weight of 403.4 g/mol. Its systematic (IUPAC) name is 2-[[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]carbamoyl]benzoic acid. Common synonyms include Sulfathalidine and Phthalazol.

It is supplied 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.

Laboratories use this the parent drug substance standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

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

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Specifications & identifiers

Chemical identifiers
Product name	Phthalylsulfathiazole
Catalogue No.	VQ-027471
CAS Number	85-73-4
IUPAC name	2-[[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]carbamoyl]benzoic acid
Molecular formula	C₁₇H₁₃N₃O₅S₂
Molecular weight	403.4 g/mol
Exact mass	403.0297
Grade	Reference Standard
HSN code	38229090
InChIKey	PBMSWVPMRUJMPE-UHFFFAOYSA-N
SMILES	C1=CC=C(C(=C1)C(=O)NC2=CC=C(C=C2)S(=O)(=O)NC3=NC=CS3)C(=O)O
PubChem CID	4806

Physical properties
Physical form	Solid
LogP (XLogP3)	1.1
H-bond donors / acceptors	3 / 8
TPSA	162 Å²
Synonyms	Sulfathalidine, Phthalazol, Sulphaphthalyl, Ftalazol, Phtalylsulfathiazol, Ftalilsulfatiazol, 4'-(2-Thiazolylsulfamoyl)phthalanilic acid, Benzoic acid, 2-(((4-((2-thiazolylamino)sulfonyl)phenyl)amino)carbonyl)-, 2-[[4-(thiazol-2-ylsulfamoyl)phenyl]carbamoyl]benzoic acid, Benzoic acid, 2-[[[4-[(2-thiazolylamino)sulfonyl]phenyl]amino]carbonyl]-, 2-((4-(thiazol-2-ylsulfamoyl)phenyl)carbamoyl)benzoic acid, Cremothalidine

Safety & hazard information (GHS)

Hazard statements

H412Harmful to aquatic life with long lasting effects

Precautionary statements: P273, 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 Phthalylsulfathiazole?

The CAS Registry Number of Phthalylsulfathiazole is 85-73-4. It is also known as Sulfathalidine, Phthalazol, Sulphaphthalyl.

What is the molecular formula and molecular weight of Phthalylsulfathiazole?

Phthalylsulfathiazole has the molecular formula C17H13N3O5S2 and a molecular weight of 403.4 g/mol. Its IUPAC name is 2-[[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]carbamoyl]benzoic acid.

Which grade and pack sizes of Phthalylsulfathiazole can I order?

We supply Phthalylsulfathiazole 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 Phthalylsulfathiazole?

Yes. Every lot of Phthalylsulfathiazole 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 Phthalylsulfathiazole be shipped internationally?

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