CAS No 503-40-2 , methanedisulfonic acid Search by region : India

Name: methanedisulfonic acid
Synonyms: Methane disulfonic acid; Methionic acid; AC1L1V6E; AC1Q6XAX; 503-40-2; NSC8541;Methanedisulphonic acid; 6291-65-2;methanedisulfonic acid;
CAS Registry Number:503-40-2
Melting Point: 107~109ºC
Density: 2.145 g/cm³
Refractive index: 1.581
EINECS: 207-966-4
Molecular Weight: 176.16886
InchiKey: OPUAWDUYWRUIIL-UHFFFAOYSA-N
InChI: InChI=1S/CH4O6S2/c2-8(3,4)1-9(5,6)7/h1H2,(H,2,3,4)(H,5,6,7)
Molecular Formula: CH₄O₆S₂
Molecular Structure:

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References of methanedisulfonic acid

Title: Methionic Acid
CAS Registry Number: 503-40-2
CAS Name: Methanedisulfonic acid
Molecular Formula: CH4O6S2
Molecular Weight: 176.17
Percent Composition: C 6.82%, H 2.29%, O 54.49%, S 36.40%
Line Formula: CH2(SO3H)2
Literature References: Prepn from methane + sulfur trioxide: Snyder, Grosse, US 2493038 (1950 to Houdry Process); by H2SO4 oxidation of acetic acid: Schwab, Neuwirth, Ber. 90, 567 (1957); from MeSO3H + SO3: Crowder, Gilbert, US 2842589 (1958 to Allied Chem.). Prepn of aluminum salt: Christian, Jenkins, J. Am. Pharm. Assoc. 39, 633 (1950); US 2504107 (1950 to Purdue Res. Found.).
Properties: Crystals, mp 96-100°.
Melting point: mp 96-100°

Derivative Type: Aluminum salt
Molecular Formula: C3H6Al2O18S6
Molecular Weight: 576.42
Percent Composition: C 6.25%, H 1.05%, Al 9.36%, O 49.96%, S 33.38%
Properties: Crystals from water + alcohol. Hygroscopic. Soly in water at 27°: 69 w/v. pH of 5% aq soln = 3.5.

Use: Antiperspirant.
Therap-Cat: Aluminum salt as topical astringent.
Keywords: Astringent.