Di Methyl Sulfate: direct from source to Europe
Di Methyl Sulfate (CAS 77-78-1) is a colourless oily liquid and powerful methylating agent used in the manufacture of pharmaceuticals, agrochemicals, dyes, quaternary ammonium compounds and fine chemicals.
- COA, SDS & TDS with every batch
- REACH status confirmed before quote
- Samples available for qualification
Di Methyl 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: Di Methyl Sulfate, CAS 77-78-1.
- Confirmed CAS number on every COA
- Premium grade with GC assay 99.5%+ available
- TDS and SDS supplied with every shipment
⚠ Toxic and carcinogenic. Supplied to verified professional industrial users only. Always match CAS 77-78-1.
Di Methyl 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.
Di Methyl 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 Di Methyl Sulfate is used
Typical end uses and synthesis routes for European manufacturers, toll processors and laboratories.
Methylation reagent
O-, N- and S-methylation in pharmaceutical and agrochemical synthesis.
Quaternary ammonium compounds
Quaternisation of tertiary amines for surfactants and specialty salts.
Dyes and fine chemicals
Methyl ethers, esters and methylated intermediates.
Custom synthesis
Reagent for contract synthesis at industrial scale.
Packed to your site, documented for customs
Di Methyl 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 Di Methyl Sulfate often source these materials as well. One supplier, one document set, one shipment.
Sulfuric 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 20174-68-92-Hydrazino-4-Methylbenzothiazole
Heterocyclic hydrazine intermediate for agrochemical fungicides.
View product →CAS 135252-10-7Diisopropyl Isothiocyanato Phenoxybenzene
Isothiocyanate intermediate for thiourea-type crop protection actives.
View product →CAS 583-78-82,5-Dichloro Phenol
Feed for dicamba-type herbicides and pharma.
View product →CAS 1009-22-92-Bromo-4-Fluoro Acetanilide
Protected halo-aniline for pharma and agro synthesis.
View product →Di Methyl Sulfate: frequently asked questions
Quick answers for European buyers. For anything else, email source@cheloragroup.com.
It is also sold as DMS, Dimethyl sulphate, Sulfuric acid dimethyl ester. All refer to CAS 77-78-1. 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.
Di Methyl Sulfate (CAS 77-78-1) is a colourless oily liquid and powerful methylating agent used in the manufacture of pharmaceuticals, agrochemicals, dyes, quaternary ammonium compounds 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 methylations with tight impurity control.
Dimethyl sulfate is a strong, cost-effective methylating agent. Dimethyl carbonate is much milder and less hazardous, while methyl iodide is more expensive and volatile. The right choice depends on reactivity, cost and your site safety controls.
Di Methyl Sulfate is classified as toxic and carcinogenic 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 and corrosive dangerous good (Class 6.1, UN 1595; 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 Di Methyl 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