123-93-3

Name Thiodiglycolic acid
CAS 123-93-3
EINECS(EC#) 204-663-9
Molecular Formula C4H6O6S
MDL Number MFCD00004359
Molecular Weight 182.15
MOL File 123-93-3.mol
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Chemical Properties

Appearance GREYISH CRYSTALLINE POWDER
Melting point  128-131 °C(lit.)
Boiling point  241.69°C (rough estimate)
density  1.352 (estimate)
refractive index  1.5500 (estimate)
storage temp.  −20°C
solubility  400g/l
form  Crystalline Powder
pka pK1:3.32;pK2:4.29 (25°C)
color  White to grayish
PH 2.2 (10g/l, H2O, 20℃)
Water Solubility  soluble
Sensitive  Stench
Merck  14,9331
BRN  1764392
Henry's Law Constant 2.2×108 mol/(m3Pa) at 25℃, HSDB (2015)
Cosmetics Ingredients Functions REDUCING
ANTIOXIDANT
InChI 1S/C4H6O4S/c5-3(6)1-9-2-4(7)8/h1-2H2,(H,5,6)(H,7,8)
InChIKey UVZICZIVKIMRNE-UHFFFAOYSA-N
SMILES OC(=O)CSCC(O)=O
LogP -0.780 (est)
CAS DataBase Reference 123-93-3(CAS DataBase Reference)
EPA Substance Registry System 123-93-3(EPA Substance)
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Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P302+P352-P305+P351+P338
Hazard Codes  C
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
R34:Causes burns.
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) .
RIDADR  UN 3261 8/PG 2
WGK Germany  3
RTECS  AJ6475000
F  13
Autoignition Temperature 350 °C
Hazard Note  Corrosive/Stench
TSCA  Yes
REACH Registrations Active
HazardClass  8
PackingGroup  III
HS Code  29309070
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
Safety Profile
Poison by intraperitoneal route. When heated to decomposition or on contact with acid or acid fumes it emits toxic fumes of SOx. See also MERCAPTOACETIC ACID.
Hazardous Substances Data 123-93-3(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: > 2000 mg/kg

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Hazard Information

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