Monomethyl Phthalate

Name: Monomethyl Phthalate
Brand: Vaqora Chemicals
SKU: VQ-040619

About Monomethyl Phthalate

Monomethyl Phthalate (CAS 4376-18-5) is a process intermediate or related compound of Pharacine offered by Vaqora Chemicals. The compound has the formula C9H8O4, corresponding to a molecular weight of 180.16 g/mol. Its systematic (IUPAC) name is 2-methoxycarbonylbenzoic acid. It is also known as 2-(Methoxycarbonyl)benzoic acid or Methyl hydrogen phthalate.

It is supplied 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 Pharacine, tracking process-related impurities and validating analytical methods. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Monomethyl Phthalate is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development
Fine chemical synthesis

Industries

Related to Pharacine

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

Pharacine impurities

Specifications & identifiers

Chemical identifiers
Product name	Monomethyl Phthalate
Catalogue No.	VQ-040619
CAS Number	4376-18-5
IUPAC name	2-methoxycarbonylbenzoic acid
Molecular formula	C₉H₈O₄
Molecular weight	180.16 g/mol
Exact mass	180.0423
InChIKey	FNJSWIPFHMKRAT-UHFFFAOYSA-N
SMILES	COC(=O)C1=CC=CC=C1C(=O)O
PubChem CID	20392

Physical properties
Physical form	Solid
LogP (XLogP3)	1.1
H-bond donors / acceptors	1 / 4
TPSA	63.6 Å²
Synonyms	2-(Methoxycarbonyl)benzoic acid, Methyl hydrogen phthalate, 1,2-Benzenedicarboxylic acid, monomethyl ester, o-(Methoxycarbonyl)benzoic acid, Phthalic acid, monomethyl ester, Monomethyl 1,2-benzenedicarboxylate, 1,2-benzenedicarboxylic acid monomethyl ester, Phthalic acid monomethyl ester, D 3 (ester), Phthalic acid, mono-methyl ester, Phthalic acid, methyl ester

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, 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 Monomethyl Phthalate?

The CAS Registry Number of Monomethyl Phthalate is 4376-18-5. It is also known as 2-(Methoxycarbonyl)benzoic acid, Methyl hydrogen phthalate, 1,2-Benzenedicarboxylic acid, monomethyl ester.

What is the molecular formula and molecular weight of Monomethyl Phthalate?

Monomethyl Phthalate has the molecular formula C9H8O4 and a molecular weight of 180.16 g/mol. Its IUPAC name is 2-methoxycarbonylbenzoic acid.

What is Monomethyl Phthalate used for?

Monomethyl Phthalate is supplied as a characterised reference material related to Pharacine. 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 Monomethyl Phthalate can I order?

We supply Monomethyl Phthalate, 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 Monomethyl Phthalate?

Yes. Every lot of Monomethyl Phthalate 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 Monomethyl Phthalate be shipped internationally?

Yes. Monomethyl Phthalate 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.