Diethyl Sulfate: direct from source to Europe
Diethyl Sulfate (CAS 64-67-5) is a colourless oily liquid and powerful ethylating agent used in the manufacture of pharmaceuticals, agrochemicals, dyes and fine chemicals.
- COA, SDS & TDS with every batch
- REACH status confirmed before quote
- Samples available for qualification
Diethyl Sulfate: names, synonyms and identifiers
Buyers search for this material under several names. Whichever one appears on your specification, purchase order or REACH dossier, it is the same compound: Diethyl Sulfate, CAS 64-67-5.
- Confirmed CAS number on every COA
- Premium grade with GC assay 99.5%+ available
- TDS and SDS supplied with every shipment
⚠ Toxic and a suspected carcinogen. Supplied to verified professional industrial users only. Always match CAS 64-67-5.
Diethyl Sulfate physical and chemical properties
Key parameters for process engineering, safety planning and storage design. Values are typical; always verify against the current TDS for your lot.
Diethyl Sulfate grade specifications: standard vs premium
Two grades are offered so your process chemist or quality team can pick what suits downstream requirements. COA parameters are confirmed before every shipment.
All values are specification limits, not guaranteed minima. Actual COA figures for your lot are provided before dispatch. Non-standard specifications are available on enquiry.
Where Diethyl Sulfate is used
Typical end uses and synthesis routes for European manufacturers, toll processors and laboratories.
Ethylation reagent
O-, N- and S-ethylation in pharmaceutical and agrochemical synthesis.
Quaternary ammonium compounds
Quaternisation of tertiary amines for surfactants and specialty salts.
Dyes and fine chemicals
Ethyl ethers, esters and ethylated intermediates.
Custom synthesis
Reagent for contract synthesis at industrial scale, for verified users only.
Packed to your site, documented for customs
Diethyl Sulfate is handled as a dangerous good. Every shipment leaves with UN-approved packaging, CLP labelling and the full document set for European import.
Steel drums
UN-approved steel drums with secure closures, palletised.
Up to 250 kg netIBC / ISO tank
UN-approved IBCs or ISO tank containers for higher-volume users.
On requestBulk supply
Bulk supply packed to agreement for suitable receiving sites.
On requestExplore related intermediates
Buyers of Diethyl Sulfate often source these materials as well. One supplier, one document set, one shipment.
Di Methyl Sulfate
Powerful methylating agent for pharma, agro and dye chemistry.
View product →CAS 7664-93-9Sulfuric Acid
Strong mineral acid for chemical synthesis, fertiliser and metal treatment.
View product →CAS 7789-23-3Potassium Fluoride
Fluoride source for Halex fluorination and specialty fluorine chemistry.
View product →CAS 8014-95-7Oleum 23%
Fuming sulfuric acid for sulfonation and nitration chemistry.
View product →CAS 8014-95-7Oleum 65%
High-strength fuming sulfuric acid for sulfonation chemistry.
View product →CAS 7790-94-5Chlorosulfonic Acid
Sulfonating and chlorosulfonating agent for dyes, pharma and surfactants.
View product →Diethyl Sulfate: frequently asked questions
Quick answers for European buyers. For anything else, email source@cheloragroup.com.
It is also sold as DES, Diethyl sulphate, Sulfuric acid diethyl ester. All refer to CAS 64-67-5. Confirm the CAS number with any supplier before ordering.
Price depends on grade, volume, packing, Incoterm and destination port, and moves with raw material markets. Send us your requirement and we will quote in EUR or USD with a landed-cost breakdown, usually within one business day.
Diethyl Sulfate (CAS 64-67-5) is a colourless oily liquid and powerful ethylating agent used in the manufacture of pharmaceuticals, agrochemicals, dyes and fine chemicals.
Standard grade offers 99.0% minimum GC assay. Premium grade offers 99.5% minimum with lower acidity and water content, and is recommended for moisture-sensitive ethylations with tight impurity control.
Both are strong alkylating agents, but they transfer different groups: Diethyl Sulfate (64-67-5) ethylates, while Dimethyl Sulfate (77-78-1) methylates. The choice depends on the target molecule; Diethyl Sulfate is generally somewhat less volatile and slightly less acutely toxic, but both are handled as toxic, carcinogen-suspect reagents under strict controls. Order by CAS to get the reagent you need.
Diethyl Sulfate is classified as toxic and a suspected carcinogen and mutagen under CLP, and is supplied only to verified professional industrial users with appropriate handling controls. We confirm REACH and CLP status, and any authorisation or notification duties, for your application before quoting.
Store in closed, corrosion-resistant containers in a cool, ventilated, access-controlled area, away from water, bases, amines and oxidisers. Use within the shelf life stated on the COA and TDS.
It is a toxic dangerous good (Class 6.1, UN 1594; always confirm on the current SDS). We pack it in UN-approved containers, apply CLP labels and ship through licensed forwarders under IMDG for sea and ADR for European road.
Yes. Laboratory and pilot samples are supplied with a COA and SDS so your team can qualify the grade. Mention sample needs in your enquiry.
REACH status is confirmed before we quote. We advise on importer-of-record arrangements and whether the substance is registered for your use. Send your use descriptor and we will confirm.
Get your Diethyl Sulfate quotation today
Send us the grade, volume, destination and Incoterm. You will receive a clear price, packaging options and a full document checklist, usually within one business day.
- Samples to full containers
- COA, SDS and DG documents included as standard
- Quote in EUR or USD, your choice of Incoterm