Melting point :64-67 °C (lit.)
Boiling point :125 °C/4 mmHg (lit.)
Density :1,36 g/cm³
vapor density :3.3 (vs air)
refractive index :1.5300 (estimate)
Flash point :125°C/4mm
storage temp. :Store at <= 20°C.
solubility :Soluble in organic solvents.
form :Powder, Crystals and/or Chunks
color :White to light brown to gray
Sensitive :Moisture Sensitive
BRN :972316
InChI :1S/C2H6O5S2/c1-8(3,4)7-9(2,5)6/h1-2H3
InChIKey :IZDROVVXIHRYMH-UHFFFAOYSA-N
SMILES :CS(=O)(=O)OS(C)(=O)=O
CAS DataBase Reference :7143-01-3(CAS DataBase Reference)
NIST Chemistry Reference :Methanesulfonic anhydride(7143-01-3)
EPA Substance Registry System :Methanesulfonic acid, anhydride (7143-01-3)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes 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
Precautionary statements:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P363 Wash contaminated clothing before reuse.