CAS No.123-81-9,Glycol dimercaptoacetate Suppliers

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Basic Information

Molecular Structure:
CAS No.:	123-81-9
Name:	Glycol dimercaptoacetate
Article Data:	3

Formula:	C6H10 O4 S2
Molecular Weight:	210.275
Synonyms:	Aceticacid, mercapto-, 1,2-ethanediyl ester (9CI); Acetic acid, mercapto-, ethyleneester (6CI,7CI,8CI); Ethylene glycol, bis(mercaptoacetate) (8CI); EGTG; EGTG(polythiol); Ethylene bis(mercaptoacetate); Ethylene glycolbis(2-mercaptoacetate); Ethylene glycol bis(thioglycolate); Ethylene glycolbis(thioglycolic ester); Ethylene mercaptoacetate; Ethylenebis(thioglycolate);Glycol bis(mercaptoacetate); Glycol dimercaptoacetate; Glycol(bisthioglycolate); NSC 30032; PETP
EINECS:	204-653-4
Density:	1.313
Boiling Point:	317 ºC
Flash Point:	167 ºC
Solubility:	20 g/L (20 ºC)
Appearance:	Clear, colorless liquid. With a stench.
Hazard Symbols:
Risk Codes:	R20/21/22;R36/38;R51/53
Safety:	Poison by ingestion. When heated to decomposition it emits toxic fumes of SO_x. See also MERCAPTANS.
PSA:	130.20000
LogP:	-0.06760

Synthetic route

: 107-21-1
ethylene glycol

: 68-11-1
mercaptoacetic acid

: 123-81-9
ethylene glycol dimercaptoacetate

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In toluene Heating;	70%
With sulfuric acid at 70 - 80℃; Reagent/catalyst; Temperature; Large scale;

: 107-21-1
ethylene glycol

: 68-11-1
mercaptoacetic acid

A: 7380-58-7
mercapto-acetic acid-(2-hydroxy-ethyl ester)

B: 123-81-9
ethylene glycol dimercaptoacetate

Conditions

Conditions	Yield
toluene-4-sulfonic acid at 110 - 150℃; for 5h;

...Expand

: 5356-85-4
methylbis(trimethylsilyloxy)vinylsilane

: 123-81-9
ethylene glycol dimercaptoacetate

: 1,14-bis(1,1,1,3,5,5,5-heptamethyltrisiloxy)-6,9-dioxa-3,12-dithiatetradecane-5,10-dione

Conditions

Conditions	Yield
With 2,2-dimethoxy-2-phenylacetophenone In benzene at 50 - 60℃; for 1h; Irradiation;	96%

: 123-81-9
ethylene glycol dimercaptoacetate

: 107-02-8
acrolein

: 158199-70-3
Ethylen-bis(6-oxo-3-thiahexanoat)

Conditions

Conditions	Yield
With triethylamine In chloroform for 12h; Ambient temperature;	95%

: 99396-97-1
(AuCl)2(μ-trans-1,2-bis(diphenylphosphino)ethylene)

: 123-81-9
ethylene glycol dimercaptoacetate

: 2966-50-9
silver trifluoroacetate

: [CH2OCOCH2SAu)2(μ-trans-Ph2PCHCHPPh2)]

Conditions

Conditions	Yield
In methanol; dichloromethane byproducts: AgCl; (darkened flask); addn. of soln. of silver compd. in methanol to soln. of gold compd. in CH2Cl2, stirring for 30 min, filtration through Celite,addn. of dithiol deriv. in CH2Cl2, stirring for 3 h; addn. of pentane, filtration, washing with acetone and ether, elem. anal.;	93%

...Expand

: 123-81-9
ethylene glycol dimercaptoacetate

: 818-08-6
di(n-butyl)tin oxide

: 2,2-dibutyl-2-stanna-1,3-dithia-6,9-dioxacycloundecane-5,10-dione

Conditions

Conditions	Yield
In toluene at 110℃; for 29h; Dean-Stark;	93%
In toluene at 110℃; for 24h; Dean-Stark;	89%

: 63640-04-0
1,4-bis(diphenylphosphino)butane digold(I) dichloride

: 123-81-9
ethylene glycol dimercaptoacetate

: 2966-50-9
silver trifluoroacetate

: 909123-30-4
[(CH2OCOCH2SAu)2)(μ-Ph2P(CH2)4PPh2)]

Conditions

Conditions	Yield
In methanol; dichloromethane byproducts: AgCl; (darkened flask); addn. of soln. of silver compd. in methanol to soln. of gold compd. in CH2Cl2, stirring for 30 min, filtration through Celite,addn. of dithiol deriv. in CH2Cl2, stirring for 3 h; addn. of pentane, filtration, washing with acetone and ether, elem. anal.;	87%

...Expand

: 64659-16-1
Au2Cl2{μ-Ph2P(CH2)6PPh2}

: 123-81-9
ethylene glycol dimercaptoacetate

: 2966-50-9
silver trifluoroacetate

: 909123-32-6
[(CH2OCOCH2SAu)2)(μ-Ph2P(CH2)6PPh2)]

Conditions

Conditions	Yield
In methanol; dichloromethane byproducts: AgCl; (darkened flask); addn. of soln. of silver compd. in methanol to soln. of gold compd. in CH2Cl2, stirring for 30 min, filtration through Celite,addn. of dithiol deriv. in CH2Cl2, stirring for 3 h; addn. of pentane, filtration, washing with acetone and ether, elem. anal.;	85%

...Expand

: 123-81-9
ethylene glycol dimercaptoacetate

: 74-99-7
prop-1-yne

A: 8-methyl-1,4-dioxa-7,10-dithiacyclododecane-5,12-dione

B: 8,20-Dimethyl-1,4,13,16-tetraoxa-7,10,19,22-tetrathia-cyclotetracosane-5,12,17,24-tetraone

Conditions

Conditions	Yield
With tripropylborane In methanol; hexane; benzene at 20℃;	A 48% B 9%

...Expand

: 156842-95-4
MoCl(CO)2(1,10-phenanthroline)(η(3)-CH2C(COCl)C=CH2)

: 75-09-2
dichloromethane

: 123-81-9
ethylene glycol dimercaptoacetate

: (MoCl(CO)2(C12H8N2)CH2CCCH2COSCH2COOCH2)2*CH2Cl2

Conditions

Conditions	Yield
With triethylamine In dichloromethane (N2); dropwise addn. of dithiol to a soln. of molybdenum complex and amine in CH2Cl2, stirring for 2 h; storage at low temp., filtration, recrystn. (CH2Cl2/petrol), drying in vac.; elem. anal.;	47%

...Expand

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Chemistry

IUPAC:   2-(2-Sulfanylacetyl)oxyethyl 2-sulfanylacetate
Mercapto di-acetic acid, ethylene ester (123-81-9) is also called for AI3-26087 ; Acetic acid, mercapto-, 1,2-ethanediyl ester ; BRN 1948305 ; EINECS 204-653-4 ; Ethylene bis(mercaptoacetate) ; Ethylene bis(thioglycolate) ; Ethylene glycol bis(mercaptoacetate) ; Ethylene glycol bis(thioglycolate) ; Ethylene glycol bis(thioglycolic ester) ; Ethylene mercaptoacetate ; Ethylenebis(thioglycolate) ; GDMA ; Glycol bis(mercaptoacetate) ; Glycol dimercaptoacetate ; NSC 30032 ; Acetic acid, 2-mercapto-, 1,1'-(1,2-ethanediyl) ester ; Ethylene di(S-thioacetate) and so on.
Molecular Weight: 210.27
Molecular Formula: C₆H₁₀O₄S₂
EINECS: 204-653-4
LogP: ACD/LogP: 0.90
XLogP: 0.60
ALOGPS: 0.75
ACD/LogD (pH 5.5): 0.89
ACD/LogD (pH 7.4): 0.72
ACD/BCF (pH 5.5): 2.8
ACD/BCF (pH 7.4): 1.89
ACD/KOC (pH 5.5): 72.7
ACD/KOC (pH 7.4): 48.95
H bond acceptors: 4
H bond donors: 0
Freely Rotating Bonds: 9
Index of Refraction: 1.516
Molar Refractivity: 49.18 cm³
Molar Volume: 162.6 cm³
Surface Tension: 46.2 dyne/cm
Density: 1.292 g/cm³
Flash Point: 242.1°C
Enthalpy of Vaporization: 55.84 kJ/mol
Boiling Point: 317.1°C at 760 mmHg
Vapour Pressure: 0.000394 mmHg at 25°C
The appearance of Mercapto di-acetic acid, ethylene ester (123-81-9) is clear liquid.
The molecular structure of Mercapto di-acetic acid, ethylene ester (123-81-9):

Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LDLo	oral	50mg/kg (50mg/kg)	BEHAVIORAL: TREMOR BEHAVIORAL: MUSCLE WEAKNESS BEHAVIORAL: ATAXIA	National Technical Information Service. Vol. OTS0546402,
rat	LD50	oral	330mg/kg (330mg/kg)		International Tin Research Institute Publication. Vol. 538, Pg. 17, 1978.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Poison by ingestion. When heated to decomposition it emits toxic fumes of SO_x. See also MERCAPTANS.
Hazard Codes: Xn Harmful ,N Dangerous
Risk Statements: 22-36/37/38-51/53-36/38-20/21/22
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
R36/38:Irritating to eyes and skin.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
Safety Statements: 26-36-57-36/37/39-29
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S57:Use appropriate container to avoid environmental contamination.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S29:Do not empty into drains.
RIDADR: 2810
WGK Germany: 2
RTECS: AI6600000
HazardClass: 6.1(b)
PackingGroup: III
HS Code: 29309070

Specification

1.Treatment of Mercapto di-acetic acid, ethylene ester (123-81-9) in Wastewater :
Total removal:1.85 percent
Total biodegradation:0.09 percent
Total sludge adsorption:1.76 percent
Total to air:0.00 percent
(using 10000 hr Bio P,A,S)
2. Handling and Storage
Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Storage: Store in a cool, dry place. Store in a tightly closed container.
3.Fire Fighting Measures
General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical foam.