Methanedisulfonic acid
Basic information
- CAS
503-40-2- Standard SMILES
O=S(=O)(O)CS(=O)(=O)O- InChIKey
OPUAWDUYWRUIIL-UHFFFAOYSA-N- Molecular formula
- CH4O6S2
- Average molar mass
- 176.17 g/mol
- Monoisotopic mass
- 175.94493019
Names & identifiers
- Preferred name
- Methanedisulfonic acid
- IUPAC
- methanedisulfonic acid
- English name
- Methanedisulphonic acid
- Molecular formula
- CH4O6S2
- Molecular weight
- 176.17
Names & synonyms
METHANEDISULFONIC ACID503-40-2Methionic acidUNII-55N1VUX48W55N1VUX48Wmethylenedisulfonic acidEINECS 207-966-4METHIONIC ACID [MI]DTXSID3060118RefChem:156914DTXCID2040814207-966-4
Show more names
MethionicacidMethane disuLDisulfomethaneMethanedisulphonicacimethylenedisufonic acidMethanedisulphonic acid solutionTIANFU CHEM-- Methanedisulphonic acid
Methane disulfonic acidMethanedisulphonic acidMETHANEDISULFONICACIDMFCD00041888NSC8541CH4O6S2MethionsaureUNII-93NQD5PEW6
Database identifiers
- CAS
503-40-2、6291-65-2- PubChem CID
- 10427
- DTXSID
DTXSID3060118- UNII
- 55N1VUX48W
- EC Number
- 207-966-4
- Nikkaji
- J6.211A
Properties
Computed structural properties
- XLogP
- -1.9
- Topological polar surface area
- 126 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 6
- Rotatable bonds
- 2
- Heavy atoms
- 9
- Formal charge
- 0
- Complexity
- 225
Physicochemical properties
- Melting point
- 96 · 96-100°
- Boiling point
- 263 ℃ · 263℃ at 101.3kPa
- Density
- 1.6517 · 1.6517 (rough estimate)
- vapor pressure
- 0 Pa · 0Pa at 25℃
- refractive index
- 1.53 · 1.5300 (estimate)
- storage temp.
- -20 °C · Hygroscopic, -20°C Freezer, Under inert atmosphere
- solubility
- DMSO (Sparingly, Heated), Methanol (Slightly)
- form
- Solid
- pka
- -0.71 · -0.71±0.50(Predicted)
- color
- White to Off-White
- PH
- -0.96 at · -0.96 at 23.9℃ and 1g/L
- Water Solubility
- 2458 g/L · 2458g/L(25 ºC)
- Stability
- Hygroscopic
- LogP
- -1.49 at · -1.49 at 25℃ and pH1
- Dissociation constant
- -0.17 at · -0.17 at 25℃
- FDA UNII
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H314 (33.3%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
P260, P261, P264, P264+P265, P271, P273, P280, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P319, P321, P332+P317, P337+P317, P362+P364, P363, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 21 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory InformationREACH registered substance: Methanedisulphonic acid (EC: 207-966-4)
Hazard Classes and CategoriesSkin Corr. 1B (33.3%)
Safety data
- tsca
- TSCA listed
- Signal word
- Danger
- Symbol(GHS)
- GHS05
- Hazard statements
- H314
- REACH Registrations
- Active
- Precautionary statements
- P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501
Chemistry & industry
Uses & manufacturing
General Manufacturing InformationMethanedisulfonic acid: ACTIVE
Applications
UsesMethane disulfonic acid is used in esterification.
Upstream & downstream products
Downstream products
Suppliers
Loading…
Open inquiries
Loading…
Related reactions
3 records
Compound notes
Loading…