Glycol dimercaptoacetate CAS#123-81-9
Glycol dimercaptoacetate CAS#123-81-9 - Image 2
Glycol dimercaptoacetate CAS#123-81-9 - Image 3
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Glycol dimercaptoacetate CAS#123-81-9

Glycol dimercaptoacetate, also known as GDMA, is a clear liquid with a specific sulfuric odor. It is poorly soluble in water but miscible with alcohol. This compound is used as a crosslinking agent in rubbers and as an accelerator in curing epoxy resins. It is also of interest in academic research and may be formed in cosmetic preparations when thioglycolic acid and ethylene glycol are used together. It is important to handle with care due to its potential skin sensitization and irritation properties .

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Glycol dimercaptoacetate CAS#123-81-9

Glycol dimercaptoacetate Chemical Properties
Boiling point 137-139 °C2 mm Hg(lit.)
density 1.313 g/mL at 25 °C(lit.)
vapor pressure 0.62Pa at 25℃
refractive index n20/D 1.522(lit.)
Fp >230 °F
storage temp. Store below +30°C.
solubility 20g/l; poorly soluble in water, miscible with alcohol.
form clear liquid
pka 7.51±0.10(Predicted)
color Colorless to Almost colorless
Specific Gravity 1.33 (20℃)
Water Solubility 20 g/L (20 ºC)
LogP 1.46 at 20℃
CAS DataBase Reference 123-81-9(CAS DataBase Reference)
NIST Chemistry Reference Acetic acid, mercapto-, 1,2-ethanediyl ester(123-81-9)
EPA Substance Registry System Acetic acid, mercapto-, 1,2-ethanediyl ester (123-81-9)
Safety Information
Hazard Codes Xn,N
Risk Statements 22-36/37/38-51/53-36/38-20/21/22-R51/53-R36/38-R20/21/22
Safety Statements 26-36-57-36/37/39-29-S57-S36/37/39-S29-S26
RIDADR 2810
WGK Germany 2
RTECS AI6600000
HazardClass 6.1(b)
PackingGroup III
HS Code 29309070
Toxicity LD50 orally in Rabbit: 330 mg/kg

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