4-Isopropylcatechol, 95%

About 4-Isopropylcatechol, 95%

4-Isopropylcatechol is a phenolic building block carrying the CAS registry number 2138-43-4 at a purity of 95%. Formula C9H12O2, molecular weight 152.19 g/mol. Its systematic (IUPAC) name is 4-propan-2-ylbenzene-1,2-diol. Common synonyms include Pyrocatechol, 4-isopropyl- and 4-(1-Methylethyl)-1,2-benzenediol.

In its supplied form it is an off-white to light yellow solid. Reported physical data include a melting point of 78-80 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Warning” with 4 hazard statements. Review the Safety Data Sheet before use.

Key uses span organic synthesis and API synthesis. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 1 g and 5 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	4-Isopropylcatechol, 95%
Catalogue No.	VQ-010176
CAS Number	2138-43-4
IUPAC name	4-propan-2-ylbenzene-1,2-diol
Molecular formula	C₉H₁₂O₂
Molecular weight	152.19 g/mol
Exact mass	152.0837
Purity / assay	95%
HSN code	29420090
InChIKey	WYVMDJWLFVQZAL-UHFFFAOYSA-N
SMILES	CC(C)C1=CC(=C(C=C1)O)O
PubChem CID	16497

Physical properties
Physical form	Solid
Appearance	Off-white to light yellow solid
Melting point	78-80 °C
LogP (XLogP3)	2.1
H-bond donors / acceptors	2 / 2
TPSA	40.5 Å²
Synonyms	Pyrocatechol, 4-isopropyl-, 4-(1-Methylethyl)-1,2-benzenediol, 1,2-Benzenediol, 4-(1-methylethyl)-, 4-Isopropylpyrocatechol, 4-(propan-2-yl)benzene-1,2-diol, 4-isopropylbenzene-1,2-diol, 4-iso-Propylcatechol, 4-isopropyl-1,2-benzenediol, p-isopropylcatechol, Benzenediol, 4-(1-methylethyl)-, 4-isopropyl-pyrocatecho

Safety & hazard information (GHS)

Harmful / irritant

Environmental hazard

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H411Toxic to aquatic life with long lasting effects

Precautionary statements: P261, P264, P264 + P265, P271, P273, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P391, 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 4-Isopropylcatechol, 95%?

The CAS Registry Number of 4-Isopropylcatechol, 95% is 2138-43-4. It is also known as Pyrocatechol, 4-isopropyl-, 4-(1-Methylethyl)-1,2-benzenediol, 1,2-Benzenediol, 4-(1-methylethyl)-.

What is the molecular formula and molecular weight of 4-Isopropylcatechol, 95%?

4-Isopropylcatechol, 95% has the molecular formula C9H12O2 and a molecular weight of 152.19 g/mol. Its IUPAC name is 4-propan-2-ylbenzene-1,2-diol.

Which grade and pack sizes of 4-Isopropylcatechol, 95% can I order?

We supply 4-Isopropylcatechol, 95% in (95%) grade, in 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 4-Isopropylcatechol, 95%?

Yes. Every lot of 4-Isopropylcatechol, 95% 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 4-Isopropylcatechol, 95% be shipped internationally?

Yes. 4-Isopropylcatechol, 95% 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.