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ChemicalBook >> CAS DataBase List >> Methanesulfonic acid

Methanesulfonic acid

Methanesulfonic acid price.
  • $10 - $4328.79
  • Product name: Methanesulfonic acid
  • CAS: 75-75-2
  • MF: CH4O3S
  • MW: 96.11
  • EINECS:200-898-6
  • MDL Number:MFCD00007518
  • Synonyms:METHANESULFONIC ACID 4.0 M WITH 0.2%*(W/ V) TRYPTAMI;MethanesulfonicAcidForSynthesis;Methanesulfonic acid, 70% aq. soln.;Methanesulfonic acid, 98+%;LutropurMSA;Methanesulfonic acid, 70% solution in water, pure;METHANESULFONICACID,TECHNICAL;Methansulfonsure
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  • AK Scientific
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  • ManufacturerAK Scientific
  • Product numberJ54717
  • Product descriptionMethanesulfonicacid(MSA)
  • Packaging25g
  • Price$20
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0066298
  • Product descriptionMETHANE SULFONIC ACID 95.00%
  • Packaging25G
  • Price$1106.03
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0066298
  • Product descriptionMETHANE SULFONIC ACID 95.00%
  • Packaging500G
  • Price$4328.79
  • Updated2021-12-16
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  • ManufacturerApolloscientific
  • Product numberOR322096
  • Product descriptionMethanesulfonic acid 99%
  • Packaging500g
  • Price$82
  • Updated2026-06-04
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  • ManufacturerApolloscientific
  • Product numberOR322096
  • Product descriptionMethanesulfonic Acid 98+%
  • Packaging100g
  • Price$24
  • Updated2021-12-16
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  • ManufacturerApolloscientific
  • Product numberOR322096
  • Product descriptionMethanesulfonic acid 99%
  • Packaging100g
  • Price$35
  • Updated2026-06-04
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  • ManufacturerAtlantic Research Chemicals
  • Product numberAN048090
  • Product descriptionMethanesulfonic acid 95
  • Packaging1g
  • Price$10.16
  • Updated2026-05-23
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  • ManufacturerAtlantic Research Chemicals
  • Product numberAN048090
  • Product descriptionMethanesulfonic acid 95
  • Packaging2.5g
  • Price$12.7
  • Updated2026-05-23
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  • ManufacturerAtlantic Research Chemicals
  • Product numberAN048090
  • Product descriptionMethanesulfonic acid 95
  • Packaging25g
  • Price$20.32
  • Updated2026-05-23
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  • ManufacturerAtlantic Research Chemicals
  • Product numberAN048090
  • Product descriptionMethanesulfonic acid 95
  • Packaging5g
  • Price$15.24
  • Updated2026-05-23
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  • ManufacturerAtlantic Research Chemicals
  • Product numberAN048090
  • Product descriptionMethanesulfonic acid 95
  • Packaging10g
  • Price$17.78
  • Updated2026-05-23
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  • ManufacturerBiosynth
  • Product numberFM158427
  • Product descriptionMethanesulfonic acid - 70% aqueous solution
  • Packaging0.5kg
  • Price$343.75
  • Updated2026-06-04
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  • ManufacturerBiosynth
  • Product numberFM158427
  • Product descriptionMethanesulfonic acid - 70% aqueous solution
  • Packaging1kg
  • Price$412.5
  • Updated2026-06-04
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  • ManufacturerBiosynth
  • Product numberFM158427
  • Product descriptionMethanesulfonic acid - 70% aqueous solution
  • Packaging2kg
  • Price$687.5
  • Updated2026-06-04
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  • ManufacturerBiosynth
  • Product numberFM158427
  • Product descriptionMethanesulfonic acid - 70% aqueous solution
  • Packaging10kg
  • Price$2337.5
  • Updated2026-06-04
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  • ManufacturerBiosynth
  • Product numberFM158427
  • Product descriptionMethanesulfonic acid - 70% aqueous solution
  • Packaging5kg
  • Price$1237.5
  • Updated2026-06-04
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AK Scientific J54717 Methanesulfonicacid(MSA) 25g $20 2021-12-16 Buy
American Custom Chemicals Corporation CHM0066298 METHANE SULFONIC ACID 95.00% 25G $1106.03 2021-12-16 Buy
American Custom Chemicals Corporation CHM0066298 METHANE SULFONIC ACID 95.00% 500G $4328.79 2021-12-16 Buy
Apolloscientific OR322096 Methanesulfonic acid 99% 500g $82 2026-06-04 Buy
Apolloscientific OR322096 Methanesulfonic Acid 98+% 100g $24 2021-12-16 Buy
Apolloscientific OR322096 Methanesulfonic acid 99% 100g $35 2026-06-04 Buy
Atlantic Research Chemicals AN048090 Methanesulfonic acid 95 1g $10.16 2026-05-23 Buy
Atlantic Research Chemicals AN048090 Methanesulfonic acid 95 2.5g $12.7 2026-05-23 Buy
Atlantic Research Chemicals AN048090 Methanesulfonic acid 95 25g $20.32 2026-05-23 Buy
Atlantic Research Chemicals AN048090 Methanesulfonic acid 95 5g $15.24 2026-05-23 Buy
Atlantic Research Chemicals AN048090 Methanesulfonic acid 95 10g $17.78 2026-05-23 Buy
Biosynth FM158427 Methanesulfonic acid - 70% aqueous solution 0.5kg $343.75 2026-06-04 Buy
Biosynth FM158427 Methanesulfonic acid - 70% aqueous solution 1kg $412.5 2026-06-04 Buy
Biosynth FM158427 Methanesulfonic acid - 70% aqueous solution 2kg $687.5 2026-06-04 Buy
Biosynth FM158427 Methanesulfonic acid - 70% aqueous solution 10kg $2337.5 2026-06-04 Buy
Biosynth FM158427 Methanesulfonic acid - 70% aqueous solution 5kg $1237.5 2026-06-04 Buy

Properties

Melting point :17-19 °C (lit.)
Boiling point :167 °C/10 mmHg (lit.)
Density :1.475-1.485 g/mL at 20 °C 1.481 g/mL at 25 °C (lit.)
vapor density :3.3 (vs air)
vapor pressure :1 mm Hg ( 20 °C)
refractive index :n20/D 1.429(lit.)
Flash point :>230 °F
storage temp. :2-8°C
solubility :water: soluble1,000 g/L at 20°C
pka :-2.6(at 25℃)
form :Solution
Specific Gravity :1.48 (18/4℃)
color :brown
biological source :synthetic
Water Solubility :Miscible with water. Slightly miscible with benzene and toluene. Immiscible with paraffins.
Sensitive :Light Sensitive & Hygroscopic
λmax :λ: 240-320 nm Amax: <0.4
Merck :14,5954
BRN :1446024
Henry's Law Constant :7.3×103 mol/(m3Pa) at 25℃, Wang et al. (2017)
Stability :Stable. Moisture sensitive. Incompatible with amines, bases, water, common metals. Releases a substantial amount of heat when diluted with water (add acid to water with care if diluting).
InChI :1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)
InChIKey :AFVFQIVMOAPDHO-UHFFFAOYSA-N
SMILES :O=S(O)(C)=O
CAS DataBase Reference :75-75-2(CAS DataBase Reference)
NIST Chemistry Reference :CH3SO3H(75-75-2)
EPA Substance Registry System :Methanesulfonic acid (75-75-2)

Safety Information

Symbol(GHS): Corrosion (GHS05)Skull and Crossbones (GHS06)Health Hazard (GHS08)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H290 May be corrosive to metals Corrosive to Metals Category 1 Warning P234, P390, P404
H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H402 Harmful to aquatic life Hazardous to the aquatic environment, acute hazard Category 3
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P234 Keep only in original container.
P261 Avoid breathing 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.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P390 Absorb spillage to prevent material damage.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P406 Store in corrosive resistant/… container with a resistant inner liner.
P501 Dispose of contents/container to..…

Description

Methanesulfonic acid is used as a catalyst in organic reactions namely esterification, alkylation and condensation reactions due to its non- volatile nature and solubility in organic solvents. It is also involved in the production of starch esters, wax oxidate esters, benzoic acid esters, phenolic esters, or alkyl esters. It reacts with sodium borohydride in presence of polar solvent tetrahydrofuran to prepare borane-tetrahydrofuran complex. It finds application in batteries, because of its purity and chloride absence. In pharmaceutical industry, it is used for the manufacturing of active pharmaceutical ingredients like telmisartan and eprosartan. It is useful in ion chromatography and is a source of carbon and energy for some gram-negative methylotropic bacteria.It is involved in the deprotection of peptides.

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