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LC3948 Methanesulfonic anhydride

for synthesis


Order number Packaging Quantity Price €
AC30948 Glass bottle 25 g 58.50


Product information
Hill Formula C2H6O5S2
Chemicalformula (CH3SO2)2O
HS Code 2904 10 00
EC number 230-442-1
Molar mass 174.2 g/mol
Storage Store below +15°C.
CAS number 7143-01-3


Chemical and physical data
Solubility (20 °C) (rigorous decomposition)
Melting point 64 – 67 °C64 – 67 °C
Molar mass 174.2 g/mol
Boiling point 105 – 109 °C (1.3 hPa)


Safety information according to GHS
Hazard Statement(s) H314: Causes severe skin burns and eye damage.
EUH014: Reacts violently with water.
Precautionary Statement(s) P280: Wear protective gloves/protective clothing/eye protection/face protection.
P301 + P330 + P331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P309: IF exposed or if you feel unwell:
P310: Immediately call a POISON CENTER or doctor/physician.
Signal Word Danger
Hazard Pictogram(s)
Storage class 8 B Non combustible, corrosive substances
WGK WGK 1 slightly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.


Safety information
R Phrase R 14-34
Reacts violently with water.Causes burns.
S Phrase S 26-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categoriesofdanger corrosive
Hazard Symbol Corrosive


Transport information
Declaration (transport by sea) IMDG-Code UN 3261 CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.(METHANSULFONIC ANHYDRIDE), 8, II, Segregation Group: 1 (Acids)


Assay (morpholine method) ≥ 98 %
Melting range
– lower value
≥ 63 °C
– upper value ≥ 66 °C
Identity (IR) passes test


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