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API Impurities

Irganox 1081

Reference StandardAvailable on request

Irganox 1081 (CAS 90-66-4) supplier Zemixal: C22H30O2S, COA and SDS with every lot, worldwide shipping. Ships from India to 120+ countries.

Pack sizes
Irganox 1081 chemical structure
CAS number90-66-4
FormulaC22H30O2S
Molar mass358.5 g/mol
Physical formSolid
HS code38229090
InChIKeyMQWCQFCZUNBTCM-UHFFFAOYSA-N
IUPAC name2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylphenyl)sulfanyl-4-methylphenol

About Irganox 1081

Irganox 1081 sits in our API Impurities section and ships worldwide from stock or short lead time. For your records (Reference Standard), the material is defined by CAS 90-66-4, formula C22H30O2S and molar mass 358.5 g/mol. It is handled as a solid.

Use cases we see most often

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Handling and storage

It carries the GHS signal word Warning (H317 and H412), so wear gloves and eye protection and work with good ventilation.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Irganox 1081
Product nameIrganox 1081
Catalogue numberZX-045662
CAS number90-66-4
IUPAC name2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylphenyl)sulfanyl-4-methylphenol
Molecular formulaC22H30O2S
Molar mass358.5 g/mol
Exact mass358.1967
GradeReference Standard
Physical formSolid
XLogP37.4
H-bond donors / acceptors2 / 3
Topological polar surface area65.8 Ų
HS code38229090
InChIKeyMQWCQFCZUNBTCM-UHFFFAOYSA-N
SMILESCC1=CC(=C(C(=C1)SC2=CC(=CC(=C2O)C(C)(C)C)C)O)C(C)(C)C
PubChem CID66661
SynonymsAdvastab 406, 2,2'-Thiobis(6-tert-butyl-4-methylphenol), 6,6'-Di-tert-butyl-2,2'-thiodi-p-cresol, Bis(2-hydroxy-3-tert-butyl-5-methylphenyl) sulfide, 2,2'-Thiobis(4-methyl-6-tert-butylphenol), 2,2'-Dihydroxy-3,3'-di-tert-butyl-5,5'-dimethyldiphenyl sulfide, 2,2'-Thiobis(6-tert-butyl-p-cresol), 6,6'-Thiobis(2-(tert-butyl)-4-methylphenol)

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H317May cause an allergic skin reaction
  • H412Harmful to aquatic life with long lasting effects

Precautionary statements P261, P272, P273, P280, P302 + P352, P321, P333 + P317, P362 + P364, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Irganox 1081
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Irganox 1081

Which CAS number identifies Irganox 1081?
Irganox 1081 is registered under CAS 90-66-4. You may also see it listed as Advastab 406, 2,2'-Thiobis(6-tert-butyl-4-methylphenol), 6,6'-Di-tert-butyl-2,2'-thiodi-p-cresol. Our catalogue number for this item is ZX-045662.
What are the formula and molar mass of Irganox 1081?
For Irganox 1081, its formula is C22H30O2S and its molar mass is 358.5 g/mol. The systematic (IUPAC) name is 2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylphenyl)sulfanyl-4-methylphenol. InChIKey MQWCQFCZUNBTCM-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Irganox 1081?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Irganox 1081?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Irganox 1081 to my country?
Yes. Because Irganox 1081 is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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