Tech Serve Solutions

Ethylene oxide

CAS 75-21-8C2H4OChemical Synthesis

Ethylene oxide (CAS 75-21-8), molecular formula C2H4O, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.

IUPAC
Oxirane
Ethylene oxide
Chemical SynthesisSpecialty GasesSynthetic Reagents
01 /Properties
Molecular weight44.05
Empirical formulaC2H4O
Assay≥99.8%
Boiling point10.7 °C(lit.)
Density0.882 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.3597(lit.)
Concentration2.5-3.3 M in THF
Melting point−111 °C(lit.)
ApplicationUseful monomer for the synthesis of poly(ethylene oxides) and glycols
02 /Safety & handling
Flammable
Flammable
Compressed gas
Compressed gas
Toxic
Toxic
Health hazard
Health hazard
Danger

Hazard statements

  • H220Extremely flammable gas
  • H280Contains gas under pressure; may explode if heated
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H331Toxic if inhaled
  • H335May cause respiratory irritation
  • H340May cause genetic defects
  • H350May cause cancer

Precautionary statements

  • P201Obtain special instructions before use
  • P210Keep away from heat, sparks and open flames. No smoking
  • P261Avoid breathing dust, fume, gas or vapours
  • P305IF IN EYES
  • P311Call a POISON CENTER or doctor
  • P410Protect from sunlight
Protective equipmentEyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US)
Flash point-20 °C / -4 °F
Transport (UN / ADR)UN 1040PSN1 2.1(2.3)
Water hazard class (WGK, DE)2
Hazard codes (EU)F+,T
Risk statements (R)45-46-6-12-23-36/37/38
Safety statements (S)53-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

03 /Identifiers & registry
CAS number
75-21-8
MDL number
MFCD00014482
PubChem substance
24864134
Beilstein registry
102378
04 /Quality & supply

Documentation

Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

05 /Frequently asked questions

What is Ethylene oxide?

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Ethylene oxide (CAS 75-21-8), molecular formula C2H4O, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.

What grades of Ethylene oxide does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Ethylene oxide in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.

What is the CAS number and molecular formula of Ethylene oxide?

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Ethylene oxide has CAS number 75-21-8 and molecular formula C2H4O. Full specifications appear in the table above and in the Certificate of Analysis.

What is the typical minimum order quantity and lead time for Ethylene oxide?

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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.

Do you provide a Certificate of Analysis (CoA) with each shipment?

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Yes. Every batch of Ethylene oxide ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.

How should Ethylene oxide be stored?

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Store Ethylene oxide in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.

What is Ethylene oxide used for?

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Ethylene oxide is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.

How do I request a quote for Ethylene oxide?

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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.

Need Ethylene oxide in a specific grade or volume?

Request a quote