Ethylene dithioglycol
Ethylene Mercaptan
CAS: 540-63-6
Molecular Formula: C2H6S2
Ethylene dithioglycol - Names and Identifiers
| Name | Ethylene Mercaptan |
| Synonyms | Dithioglycol Ethylenedithiol 1,2-dithioglycol 1,2-Ethanedithiol Ethylene Mercaptan ethane-1,2-dithiol ethene-1,1-dithiol 1,2- B twoMercaptan ethylenedithioglycol ethylhydropersulfide Ethylene dimercaptan Ethylene dithioglycol s-Ethylene dimercaptan Ethylene glycol, dithio- |
| CAS | 540-63-6 |
| EINECS | 208-752-3 |
| InChI | InChI=1/C2H4S2/c1-2(3)4/h3-4H,1H2 |
| InChIKey | VYMPLPIFKRHAAC-UHFFFAOYSA-N |
Ethylene dithioglycol - Physico-chemical Properties
| Molecular Formula | C2H6S2 |
| Molar Mass | 94.2 |
| Density | 1.123 g/mL at 25 °C (lit.) |
| Melting Point | -41 °C (lit.) |
| Boling Point | 144-146 °C (lit.) |
| Flash Point | 122°F |
| JECFA Number | 532 |
| Water Solubility | insoluble |
| Vapor Presure | 4.8 mm Hg ( 20 °C) |
| Vapor Density | >1 (vs air) |
| Appearance | Liquid |
| Color | Clear slightly colored |
| Merck | 14,3725 |
| BRN | 505946 |
| pKa | pK1:8.96;pK2:10.54 (25°C) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Flammable. Incompatible with oxidizing agents, bases, reducing agents, alkali metals. |
| Sensitive | Air Sensitive |
| Refractive Index | n20/D 1.558(lit.) |
| Physical and Chemical Properties | Clear to light green liquid. A pungent, queasy thiol odor. Boiling Point 146 °c, or 46-47 °c (800Pa). Insoluble in water, miscible in oil. Natural products are found in boiled beef. |
| Use | Used as a pharmaceutical Intermediate |
Ethylene dithioglycol - Risk and Safety
| Risk Codes | R10 - Flammable R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R23/25 - Toxic by inhalation and if swallowed. R21 - Harmful in contact with skin R36 - Irritating to the eyes R23 - Toxic by inhalation R21/22 - Harmful in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | 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.) S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S16 - Keep away from sources of ignition. S36/37 - Wear suitable protective clothing and gloves. S36 - Wear suitable protective clothing. S7/9 - |
| UN IDs | UN 3071 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | KI3325000 |
| FLUKA BRAND F CODES | 10-13-23 |
| TSCA | Yes |
| HS Code | 29309070 |
| Hazard Class | 3 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 120 mg/kg LD50 dermal Rabbit 197 mg/kg |
Ethylene dithioglycol - Reference Information
| FEMA | 3484 | 1,2-ETHANEDITHIOL |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | GRAS(FEMA). |
| usage limit | FEMA(mg/kg): baked goods, meat products and soup are all 0.2. |
| use | food spices. Used in organic synthesis and biochemical research. Used as a metal complexing agent. Used as a pharmaceutical intermediate Organic synthesis. Synthesis of 1, 3-diketones, cyclodisulfide, thioacetate, etc. Biochemical research. |
| Production method | First, diisothiourea ethane bromide is synthesized from dibromoethane and thiourea, and then treated with sodium hydroxide and sulfuric acid to obtain 1, 2-dimercaptoethane. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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