3-Mercaptopropanoic Acid
3-Mercaptopropionic acid
CAS: 107-96-0
Molecular Formula: C3H6O2S
3-Mercaptopropanoic Acid - Names and Identifiers
| Name | 3-Mercaptopropionic acid |
| Synonyms | Thiopropionic acid 3-thiopropionicacid 3-mercaptopropionic 3-sulfanylpropanoate 3-Thiopropionic acid 3-mercpato-propionicaci Mercapto Propionic Acid 3-mercapto-propionicaci 3-Mercaptopropanoic Acid 3-Mercaptopropionic acid 3-sulfanylpropanoic acid 3-Sulfanylpropanoic acid beta-mercaptopropanoicacid acidemercapto-3propionique |
| CAS | 107-96-0 |
| EINECS | 203-537-0 |
| InChI | InChI=1/C3H6O2S/c4-3(5)1-2-6/h6H,1-2H2,(H,4,5)/p-1 |
| InChIKey | DKIDEFUBRARXTE-UHFFFAOYSA-N |
3-Mercaptopropanoic Acid - Physico-chemical Properties
| Molecular Formula | C3H6O2S |
| Molar Mass | 106.14 |
| Density | 1.218 g/mL at 25 °C (lit.) |
| Melting Point | 15-18 °C (lit.) |
| Boling Point | 110-111 °C/15 mmHg (lit.) |
| Flash Point | 201°F |
| JECFA Number | 1936 |
| Water Solubility | soluble |
| Vapor Presure | 0.04 mm Hg ( 20 °C) |
| Appearance | Crystalline Powder, Crystals, and/or Chunks |
| Specific Gravity | 1.218 |
| Color | White |
| BRN | 773807 |
| pKa | pK1:;pK2:10.84(SH) (25°C) |
| PH | 2 (120g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Sensitive | Air Sensitive & Hygroscopic |
| Explosive Limit | 1.60%(V) |
| Refractive Index | n20/D 1.492(lit.) |
| Physical and Chemical Properties | Density 1.218 melting point 17-19°C boiling point 110-111°C (15 mmHg) refractive index 1.491-1.493 flash point 93°C water soluble |
| Use | For pharmaceutical intermediates, electronic chemicals, etc |
3-Mercaptopropanoic Acid - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R25 - Toxic if swallowed R34 - Causes burns R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. |
| Safety Description | S7 - Keep container tightly closed. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 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.) |
| UN IDs | UN 2922 8/PG 2 |
| WGK Germany | 1 |
| RTECS | UF5270000 |
| FLUKA BRAND F CODES | 10-13 |
| TSCA | Yes |
| HS Code | 29309070 |
| Hazard Class | 8 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 96 mg/kg |
3-Mercaptopropanoic Acid - Upstream Downstream Industry
| Raw Materials | Acrylonitrile Thiourea |
3-Mercaptopropanoic Acid - Reference Information
| FEMA | 4587 | 3-MERCAPTOPROPIONIC ACID |
| LogP | -2.3 at 22℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | 3-mercaptopropionic acid is a direct raw material of organic chemical industry, used in pharmaceutical intermediates, electronic chemicals; it is used as an intermediate in the medicine of fennerol and also as a stabilizer for polyvinyl chloride. It can be used in transparent products like thioglycolic acid, and has very good thermal stability, which is superior to other stabilizers. It is also used as antioxidant, catalyst and Biochemical reagent. |
| purpose | This product is an intermediate of medicine fennerol and also used as a stabilizer of polyvinyl chloride. It is the same as thioglycolic acid can be used in transparent products, thermal stability is very good, better than other stabilizers. Also used as antioxidants, catalysts and biochemical reagents. 3-mercaptopropionic acid is an intermediate of fenalol in medicine and is also used as a stabilizer for polyvinyl chloride. Thioglycolic acid as can be used for transparent products, its stability is very good, better than other stabilizers. It can also be used as antioxidant, catalyst and Biochemical reagent. used as antioxidant, catalyst and Biochemical reagent. High speed RP-HPLC/FC analysis of amino acids. suitable reagents for amino acid analysis by OPA used in pharmaceutical intermediates, electronic chemicals, etc. |
| production method | acrylonitrile and thiourea are used as raw materials. First, react thiourea with hydrochloric acid at 40 ℃ for 0.5h, Dropwise add acrylonitrile, react at 110-113 ℃ for 3h, cool to 40 ℃, add 4% sodium hydroxide solution to pH 11, and dehydrogenation for 4h, neutralized with hydrochloric acid at 30 °c to a pH of 1-2. Then, benzene is added for extraction, and after benzene is recovered, vacuum distillation is carried out, and a 125-140 ° C. Fraction is collected to obtain a finished product. In addition, 3-mercaptopropionic acid can also be obtained from the reaction of hydrogen sulfide with pyruvic acid or with β-propiolactone. |
| spontaneous combustion temperature | 662 ° F. |
| 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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Raw Materials for 3-Mercaptopropanoic Acid