| | Identification | More |  | [Name] 
 THIODIGLYCOLIC ACID
 |  | [CAS] 
 505-73-7
 |  | [Synonyms] 
 2,2'-THIO-BIS(ACETIC ACID)
 2,2'-THIODIACETIC ACID
 2,2'-THIODIGLYCOLIC ACID
 ACETIC ACID, 2,2'-THIOBIS-
 BIS(CARBOXYMETHYL)-SULFIDE
 DICARBOXYDIMETHYL SULFIDE
 DIMETHYL SULFIDE-ALPHA,ALPHA'-DICARBOXYLIC ACID
 DITHIOGLYCOLIC ACID
 MERCAPTODIACETIC ACID
 RARECHEM AL BO 1549
 SYM-DICARBOXY DIMETHYL DISULFIDE
 THIODIACETIC ACID
 THIODIGLYCOLIC ACID
 THIODIGLYCOLLIC ACID
 2,2’-dithiobis-aceticaci
 Dithioglycollicacid
 Dithioglycolic acid (40% in water)
 2,2ˊ-Dithiobisacetic acid
 DITHIOGLYCOLIC ACID: (40% IN WATER, CA.2.6MOL/L)
 2,2-DITHIOGLYCOLIC ACID
 |  | [EINECS(EC#)] 
 204-663-9
 |  | [Molecular Formula] 
 C4H6O4S
 |  | [MDL Number] 
 MFCD00004359
 |  | [Molecular Weight] 
 150.15
 |  | [MOL File] 
 505-73-7.mol
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 128-131 °C(lit.)
 
 |  | [Boiling point ] 
 395.6±27.0 °C(Predicted)
 |  | [density ] 
 1,19 g/cm3
 |  | [storage temp. ] 
 −20°C
 
 |  | [solubility ] 
 DMSO (Slightly), Methanol (Slightly)
 |  | [form ] 
 Solid
 |  | [pka] 
 pK1:3.32;pK2:4.29 (25°C)
 |  | [color ] 
 White to Off-White
 |  | [Water Solubility ] 
 very faint turbidity
 |  | [InChI] 
 InChI=1S/C4H6O4S2/c5-3(6)1-9-10-2-4(7)8/h1-2H2,(H,5,6)(H,7,8)
 |  | [InChIKey] 
 DLLMHEDYJQACRM-UHFFFAOYSA-N
 |  | [SMILES] 
 S(CC(O)=O)SCC(O)=O
 |  | [LogP] 
 1.390 (est)
 |  | [CAS DataBase Reference] 
 505-73-7(CAS DataBase Reference)
 |  | [EPA Substance Registry System] 
 Acetic acid, 2,2'-dithiobis- (505-73-7)
 | 
 | Safety Data | Back Directory |  | [Hazard Codes ] 
 C,Xi
 |  | [Risk Statements ] 
 R34:Causes burns.
 R36/37/38:Irritating to eyes, respiratory system and skin .
 |  | [Safety Statements ] 
 S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
 S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
 S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
 S36:Wear suitable protective clothing .
 |  | [RIDADR ] 
 UN 3261 8/PG 2
 
 |  | [WGK Germany ] 
 2
 
 |  | [RTECS ] 
 AJ6475000
 
 |  | [F ] 
 13
 |  | [HS Code ] 
 2930.90.4950
 | 
 | Hazard Information | Back Directory |  | [Uses] 
 Thiodiglycolic acid is a major metabolite of vinyl chloride monomer and ifosfamide (an anti-cancer drug) in human urine. It is used as an analytical reagent for the detection of copper, lead, mercury and silver.
 |  | [Definition] 
 ChEBI: Thiodiacetic acid is a dicarboxylic acid.
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