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ChemicalBook >> CAS DataBase List >> Methyl fluorosulfonate

Methyl fluorosulfonate

Methyl fluorosulfonate price.
  • $45 - $952.01
  • Product name: Methyl fluorosulfonate
  • CAS: 421-20-5
  • MF: CH3FO3S
  • MW: 114.1
  • EINECS:207-004-3
  • MDL Number:MFCD00014721
  • Synonyms:fluorosulfuricacid,methylester ;Methyl sulphurofluoridoate, Methoxysulphonyl fluoride;methyl fluorosulphate;Methylfluorosulfonate,95%,stab.withKF;Methyl fluorosulphonate 97%;Methylfluorosulphonate97%;METHYL FLUOROSULPHONATE (STABILIZED WITH KF);Methyl Fluorosulfonate (stabilized with KF) [for Esterification]
Price5 Properties Safety Information Description
5 prices
Selected condition：
Brand
  • aablocks
  • American Custom Chemicals Corporation
  • TRC
Package
  • 100mg
  • 250mg
  • 1g
  • 5G
  • Manufactureraablocks
  • Product numberAA003560
  • Product descriptionMethyl fluorosulphonate ≥98%(T)
  • Packaging250mg
  • Price$46
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003560
  • Product descriptionMethyl fluorosulphonate ≥98%(T)
  • Packaging1g
  • Price$135
  • Updated2026-05-28
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberHCH0026536
  • Product descriptionMETHYL FLUOROSULFONATE 95.00%
  • Packaging1G
  • Price$648.83
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberHCH0026536
  • Product descriptionMETHYL FLUOROSULFONATE 95.00%
  • Packaging5G
  • Price$952.01
  • Updated2021-12-16
  • Buy
  • ManufacturerTRC
  • Product numberM305828
  • Product descriptionMethylFluorosulfate(stabilizedwithKF)
  • Packaging100mg
  • Price$45
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA003560 Methyl fluorosulphonate ≥98%(T) 250mg $46 2026-05-28 Buy
aablocks AA003560 Methyl fluorosulphonate ≥98%(T) 1g $135 2026-05-28 Buy
American Custom Chemicals Corporation HCH0026536 METHYL FLUOROSULFONATE 95.00% 1G $648.83 2021-12-16 Buy
American Custom Chemicals Corporation HCH0026536 METHYL FLUOROSULFONATE 95.00% 5G $952.01 2021-12-16 Buy
TRC M305828 MethylFluorosulfate(stabilizedwithKF) 100mg $45 2021-12-16 Buy

Properties

Melting point :-95°
Boiling point :93 °C
Density :1.45
refractive index :nD20 1.3326
Flash point :10℃
form :liquid
Merck :6075
CAS DataBase Reference :421-20-5(CAS DataBase Reference)
EPA Substance Registry System :Fluorosulfuric acid, methyl ester (421-20-5)

Safety Information

Symbol(GHS): Corrosion (GHS05)Skull and Crossbones (GHS06)Flame (GHS02)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
H330 Fatal if inhaled Acute toxicity,inhalation Category 1, 2 Danger P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P241 Use explosion-proof electrical/ventilating/lighting/…/equipment.
P242 Use only non-sparking tools.
P243 Take precautionary measures against static discharge.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P284 Wear respiratory protection.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.
P370+P378 In case of fire: Use … for extinction.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P403+P235 Store in a well-ventilated place. Keep cool.
P405 Store locked up.
P501 Dispose of contents/container to..…

Description

In organic synthesis as methylating agent.

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METHYL FLUOROSULFONATE FLUOROSULFONIC ACID Trifluoromethanesulfonic anhydride 425-75-2

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Suppliers and manufacturers

J & K SCIENTIFIC LTD. Meryer (Shanghai) Chemical Technology Co., Ltd. TCI (Shanghai) Development Co., Ltd. Energy Chemical Shanghai Sinch Parmaceuticals Tech. Co. Ltd. shanghai science Bio-Pharmceutical.co,ltd. TOKYO CHEMICAL INDUSTRY CO., LTD. 9ding chemical ( Shanghai) Limited Shanghai YuanYe Biotechnology Co., Ltd. Shandong Xiya Chemical Co., Ltd.