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| CAS No.: | 60-24-2 |
|---|---|
| Name: | 2-Mercaptoethanol |
| Article Data: | 90 |
| Molecular Structure: | |
|
|
|
| Formula: | C2H6OS |
| Molecular Weight: | 78.135 |
| Synonyms: | 1-Hydroxy-2-mercaptoethane;1-Mercapto-2-hydroxyethane;2-Hydroxy-1-ethanethiol;2-Hydroxyethanethiol;2-Hydroxyethyl mercaptan;2-Mercapto-1-ethanol;2-Mercaptoethanol;2-Mercaptoethyl alcohol;2-Sulfanylethanol;Ethylene glycol, monothio-;Hydroxyethyl mercaptan;Mercaptoethanol;Monothioethylene glycol;Monothioglycol;NSC 3723;Thioethylene glycol;Thiomonoglycol;b-Hydroxyethanethiol;b-Hydroxyethylmercaptan;b-Mercaptoethanol; |
| EINECS: | 200-464-6 |
| Density: | 1.069 g/cm3 |
| Melting Point: | -100 °C |
| Boiling Point: | 156.999 °C at 760 mmHg |
| Flash Point: | 73.889 °C |
| Solubility: | Miscible with water, ethanol, ether and benzene |
| Appearance: | Clear colorless liquid |
| Hazard Symbols: |
 T,  N
|
| Risk Codes: | 20/22-24-34-51/53-36/37/38-22-23/24/25 |
| Safety: | 26-36/37/39-45-61-29-23-27 |
| Transport Information: | UN 2966 6.1/PG 2 |
| PSA: | 59.03000 |
| LogP: | -0.09150 |
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Specification
The 2-Mercaptoethanol with CAS registry number of 60-24-2 is also known as Ethanol, 2-mercapto-. The IUPAC name is 2-Sulfanylethanol. It belongs to product categories of Industrial/Fine Chemicals; Antioxidant; Biochemistry; Reagents for Electrophoresis. Its EINECS registry number is 200-464-6. In addition, the formula is C2H6OS and the molecular weight is 78.13. This chemical is a clear colorless liquid and should be sealed in cool ang dry place without light.
Physical properties about 2-Mercaptoethanol are: (1)ACD/BCF (pH 5.5): 1; (2)ACD/BCF (pH 7.4): 1; (3)ACD/KOC (pH 5.5): 17.859; (4)ACD/KOC (pH 7.4): 17.782; (5)#H bond acceptors: 1; (6)#H bond donors: 1; (7)#Freely Rotating Bonds: 3; (8)Index of Refraction: 1.479; (9)Molar Refractivity: 20.746 cm3; (10)Molar Volume: 73.103 cm3; (11)Surface Tension: 37.013 dyne/cm; (12)Density: 1.069 g/cm3; (13)Flash Point: 73.889 °C; (14)Enthalpy of Vaporization: 45.853 kJ/mol; (15)Boiling Point: 156.999 °C at 760 mmHg; (16)Vapour Pressure: 1.011 mmHg at 25 °C.
Preparation of 2-Mercaptoethanol: it is prepared by reaction of ethylene oxide and hydrogen sulfide with the molar ratio of 1:3.5. The reaction occurs with catalyst strong alkaline anionic exchange resin at the temperature of 40 °C.
Uses of 2-Mercaptoethanol: it is used to make some proteins be denatured via its ability to cleave disulfide bonds. Besides, it is used in some RNA isolation procedures to eliminate ribonuclease released during cell lysis.
When you are using this chemical, please be cautious about it. As a chemical, it is irritating to eyes, respiratory system and skin. What's more, it is toxic by inhalation, in contact with skin and if swallowed. It is toxic to aquatic organisms that may cause long-term adverse effects in the aquatic environment. It also may cause burns. During using it, wear suitable protective clothing, gloves and eye/face protection. Do not breathe gas/fumes/vapour/spray and do not empty into drains. It's necessary to avoid release to the environment. After using it, take off immediately all contaminated clothing. If contact with eyes accidently, rinse immediately with plenty of water and seek medical advice. In case of accident or if you feel unwell seek medical advice immediately.
You can still convert the following datas into molecular structure:
1. Canonical SMILES: C(CS)O
2. InChI: InChI=1S/C2H6OS/c3-1-2-4/h3-4H,1-2H2
3. InChIKey: DGVVWUTYPXICAM-UHFFFAOYSA-N
The toxicity data is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| guinea pig | LD50 | skin | 300uL/kg (0.3mL/kg) | Journal of Industrial Hygiene and Toxicology. Vol. 26, Pg. 269, 1944. | |
| mouse | LC50 | inhalation | 13200mg/m3 (13200mg/m3) | LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 15(2), Pg. 56, 1971. |
| mouse | LD50 | intraperitoneal | 200mg/kg (200mg/kg) | National Technical Information Service. Vol. AD277-689, | |
| mouse | LD50 | oral | 190mg/kg (190mg/kg) | BEHAVIORAL: EXCITEMENT BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 15(2), Pg. 56, 1971. |
| mouse | LD50 | unreported | 480mg/kg (480mg/kg) | BEHAVIORAL: TREMOR GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD | Journal of Pharmaceutical Sciences. Vol. 62, Pg. 237, 1973. |
| rabbit | LD50 | skin | 150uL/kg (0.15mL/kg) | Union Carbide Data Sheet. Vol. 3/23/1973, | |
| rat | LCLo | inhalation | 250ppm/8H (250ppm) | Union Carbide Data Sheet. Vol. 3/23/1973, | |
| rat | LD50 | oral | 244mg/kg (244mg/kg) | BEHAVIORAL: EXCITEMENT BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 15(2), Pg. 56, 1971 |
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