Methanedisulfonic acid

Basic Information

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CAS Number

503-40-2

Molecular Formula

CH4O6S2

Molecular Weight

176.17 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

100-110°C

Refractive Index

1.5300 (estimate)

SMILES

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C(S(=O)(=O)O)S(=O)(=O)O

InChI

InChI=1S/CH4O6S2/c2-8(3,4)1-9(5,6)7/h1H2,(H,2,3,4)(H,5,6,7)

InChIKey

OPUAWDUYWRUIIL-UHFFFAOYSA-N

LogP

-1.2804999999999995

Topological Polar Surface Area

108.74 Å²

Hydrogen Bond Donor/Acceptor

2 / 6

Complexity

225

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

DTXSID3060118
UNII-93NQD5PEW6
A828074
EINECS 207-966-4
AKOS005259705
NSC8541
W-105971
93NQD5PEW6
EINECS 228-543-0
Methionsaure
FT-0628283
Methanedisulfonic acid, dipotassium salt
Dipotassium methanedisulphonate
EN300-180243
METHIONIC ACID [MI]
methylenedisulfonic acid
MFCD00041888
F16475
METHANEDISULFONIC ACID
Q27261323
OPUAWDUYWRUIIL-UHFFFAOYSA-N
NSC 8541
Methanedisulphonic acid
AS-17428
NS00020520
SY157937
UNII-55N1VUX48W
METHANEDISULFONICACID
Methane disulfonic acid
SCHEMBL34406
55N1VUX48W

MDL Number

MFCD00041888

Customs Code

2904100000

FAQ

What is Methanedisulfonic acid (CAS: 503-40-2)?

Methanedisulfonic acid (MDS) is a colorless, crystalline solid with the chemical formula H2NSO3CH3. It is a strong acid and has a pungent odor. MDS is water-soluble and used in various applications due to its acidic properties.

What are the main uses of Methanedisulfonic acid (CAS: 503-40-2)?

Methanedisulfonic acid (MDS) is primarily used in pharmaceuticals as a catalyst, in the food industry for pH adjustment, and in research for organic synthesis and analytical applications. It is also used as a reagent in chemical analysis and as a preservative.

Is Methanedisulfonic acid (CAS: 503-40-2) safe?

Methanedisulfonic acid is corrosive and can cause skin and eye irritation. It is important to handle with appropriate personal protective equipment (PPE), such as gloves and goggles. Proper通风is also required. Storage containers should be sealed, and the compound should be kept in a cool, dry place away from heat sources and oxidizers. Handling should be done in a fume hood.

How should Methanedisulfonic acid (CAS: 503-40-2) be stored?

Methanedisulfonic acid should be stored in a cool, dry place with a temperature below 25°C, away from heat sources and oxidizers. The container should be tightly sealed to prevent moisture absorption and ensure the acid remains in a solid form. Exposure to light should be minimized, and the storage area should have proper ventilation to avoid build-up of fumes. It is recommended to use glass or plastic containers, avoiding metal ones to prevent corrosion.