Thiomalic acid

Names

[ CAS No. ]:
70-49-5

[ Name ]:
Thiomalic acid

[Synonym ]:
2-thiomalic acid
Mercaptobutanedioic Acid
DL-Mercaptosuccinic acid
2-sulfanylbutanedioic acid
Thiomalic acid
EINECS 200-736-4
Mercaptosuccinic acid
Butanedioic acid, 2-mercapto-
2-Sulfanylsuccinic acid
2-mercaptosuccinic acid
MFCD00004860

Chemical & Physical Properties

[ Density]:
1.5±0.1 g/cm3

[ Boiling Point ]:
256.3±30.0 °C at 760 mmHg

[ Melting Point ]:
155-157 °C(lit.)

[ Molecular Formula ]:
C₄H₆O₄S

[ Molecular Weight ]:
150.153

[ Flash Point ]:
108.8±24.6 °C

[ Exact Mass ]:
149.998672

[ PSA ]:
113.40000

[ LogP ]:
0.35

[ Vapour Pressure ]:
0.0±1.1 mmHg at 25°C

[ Index of Refraction ]:
1.556

[ Storage condition ]:
2-8°C

[ Water Solubility ]:
150 g/L (20 ºC)

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: WM8225000

CHEMICAL NAME :: Succinic acid, mercapto-

CAS REGISTRY NUMBER :: 70-49-5

BEILSTEIN REFERENCE NO. :: 1099858

LAST UPDATED :: 199701

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C4-H6-O4-S

MOLECULAR WEIGHT :: 150.16

WISWESSER LINE NOTATION :: SHYVQ1VQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689

Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H302-H315-H319-H335

[ Precautionary Statements ]:
P261-P305 + P351 + P338

[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Gloves

[ Hazard Codes ]:
Xn:Harmful;

[ Risk Phrases ]:
R22;R36/37/38

[ Safety Phrases ]:
S26-S36-S36/37/39

[ RIDADR ]:
1759

[ WGK Germany ]:
3

[ RTECS ]:
WM8225000

[ Packaging Group ]:
III

[ Hazard Class ]:
8

[ HS Code ]:
2930909090

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2930909090

[ Summary ]:
2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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