Irganox 245

Name: Irganox 245
Brand: Vaqora Chemicals
SKU: VQ-039375

About Irganox 245

Irganox 245 (CAS 36443-68-2) is an API reference standard offered by Vaqora Chemicals. Formula C34H50O8, molecular weight 586.8 g/mol. It is also known as Antioxidant 245 or Antioxidant245.

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. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

As a reference sample of the parent drug substance, it is used for identification, assay and impurity-profiling work during analytical method development, validation (AMV) and routine QC. Buyers come mainly from 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

Identification & assay
Method development & validation
QC reference material

Industries

Specifications & identifiers

Chemical identifiers
Product name	Irganox 245
Catalogue No.	VQ-039375
CAS Number	36443-68-2
IUPAC name	2-[2-[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate
Molecular formula	C₃₄H₅₀O₈
Molecular weight	586.8 g/mol
Exact mass	586.3506
Grade	Reference Standard
HSN code	38229090
InChIKey	QSRJVOOOWGXUDY-UHFFFAOYSA-N
SMILES	CC1=CC(=CC(=C1O)C(C)(C)C)CCC(=O)OCCOCCOCCOC(=O)CCC2=CC(=C(C(=C2)C)O)C(C)(C)C
PubChem CID	91620

Physical properties
Physical form	Solid
LogP (XLogP3)	6.9
H-bond donors / acceptors	2 / 8
TPSA	112 Å²
Synonyms	Antioxidant 245, Triethylene glycol bis(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate, Ethylenebis(oxyethylene) bis(3-(5-tert-butyl-4-hydroxy-m-tolyl)propionate), Ethylenebis(oxyethylene) bis[3-(5-tert-butyl-4-hydroxy-m-tolyl)propionate], Antioxidant245, triethylene glycol bis-(3-(3'-tert-butyl-4'-hydroxy-5'-methylphenyl)propionate), Antioxidant XH-245, Triethyleneglycol-bis-3-(3-tert-butyl-4-hydroxy-5-methyl)propionate, triethylene glycol-bis-[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionate], triethyleneglycol-bis[3-(3-tert-butyl-5-methyl-4-hydroxyphenyl) propionate]

Safety & hazard information (GHS)

Environmental hazard

Signal word: Warning

Hazard statements

H410Very toxic to aquatic life with long lasting effects
H412Harmful to aquatic life with long lasting effects
H413May cause long lasting harmful effects to aquatic life

Precautionary statements: P273, P391, 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 Irganox 245?

The CAS Registry Number of Irganox 245 is 36443-68-2. It is also known as Antioxidant 245, Triethylene glycol bis(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate, Ethylenebis(oxyethylene) bis(3-(5-tert-butyl-4-hydroxy-m-tolyl)propionate).

What is the molecular formula and molecular weight of Irganox 245?

Irganox 245 has the molecular formula C34H50O8 and a molecular weight of 586.8 g/mol. Its IUPAC name is 2-[2-[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate.

Which grade and pack sizes of Irganox 245 can I order?

We supply Irganox 245 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 Irganox 245?

Yes. Every lot of Irganox 245 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 Irganox 245 be shipped internationally?

Yes. Irganox 245 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.