Thiodiglycolic acid（CAS#123-93-3）

Molecular Formula	C4H6O4S
Molar Mass	150.15
Density	1.352 (estimate)
Melting Point	128-131°C(lit.)
Boling Point	241.69°C (rough estimate)
Flash Point	181.8°C
Water Solubility	soluble
Solubility	400g/l
Vapor Presure	1.01E-06mmHg at 25°C
Appearance	White to beige powder
Color	White to grayish
Merck	14,9331
BRN	1764392
pKa	pK1:3.32;pK2:4.29 (25°C)
PH	2.2 (10g/l, H2O, 20℃)
Storage Condition	Store below +30°C.
Sensitive	Stench
Refractive Index	1.5500 (estimate)
MDL	MFCD00004359
Use	Antioxidants, and for the production of thioester antioxidants

Product Detail

Hazard Symbols	C – Corrosive
Risk Codes	R36/37/38 – Irritating to eyes, respiratory system and skin. R34 – Causes burns
Safety Description	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 the label whenever possible.)
UN IDs	UN 3261 8/PG 2
WGK Germany	3
RTECS	AJ6475000
FLUKA BRAND F CODES	13
TSCA	Yes
HS Code	29309070
Hazard Note	Corrosive/Stench
Hazard Class	8
Packing Group	III
Toxicity	LD50 orally in Rabbit: > 2000 mg/kg