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HCID 74949Erstellt: 3. November 2026
2,2'-[Methylenbis(thio)]bisessigsure
3,5-Dithiaheptanedioic acid · Methylenedithiodiacetic acid · Methylenebis(thioacetic acid) · 2,2'-(Methylenebis(sulfanediyl) · Methylenebis-(thioglycollic acid) · Acetic acid, (methylenedithio)di- · Methylenebis(thioglycolicAcid)>METHYLENE BIS(MERCAPTOACETIC ACID) · Methylenebis(thioacetic acid), 97+%
https://huagongshe.com/de/chemical/74949
Identifikatoren & physikalische Daten
| CAS No. | 2068-24-8 |
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| Summenformel | C5H8O4S2 |
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| Durchschnittliche Molmasse | 196,2 g/mol |
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| Monoisotopische Masse | 195,98640108 g/mol |
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| SMILES | O=C(O)CSCSCC(=O)O |
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| InChIKey | CZEVAMMETWVBOD-UHFFFAOYSA-N |
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| PubChem CID | 74949 |
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| EC No. | 218-189-5 |
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| DTXSID | DTXSID7062164 |
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| Lokaler Name | 2,2'-[Methylenbis(thio)]bisessigsure |
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Chemische & physikalische Eigenschaften
| XLogP | 0,8 |
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| Polarare Oberfläche (TPSA) | 125 |
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| H-Brücken-Donoren | 2 |
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| H-Brücken-Akzeptoren | 6 |
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| Frei drehbare Bindungen | 6 |
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| Schwere Atome | 11 |
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| Formalladung | 0 |
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| Komplexität | 131 |
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| Schmelzpunkt | 125 °C |
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| Siedepunkt | 126-128 °C(Press: 0.1 Torr) |
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| Dichte | 1.57 g/cm3 |
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| Aggregatzustand | powder to crystal |
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| pKa (Säurekonstante) | pK1:3.31pK2:4.345 (18°C) |
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| Farbe | White to Light yellow to Light orange |
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| CAS Datenbank | 2068-24-8(CAS DataBase Reference) |
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| EPA chemische Informationen | Acetic acid, 2,2'-[methylenebis(thio)]bis- (2068-24-8) |
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Sicherheit & Vorschriften
| GHS-Einstufung | WarningH302 (90.7%): Harmful if swallowed [Warning Acute toxicity, oral]P264, P264+P265, P270, P280, P301+P317, P305+P351+P338, P330, P337+P317, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 43 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
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| Hazard Classes and Categories | Acute Tox. 4 (90.7%) |
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| TSCA-Inventar-Status | TSCA listed |
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| Zollcode | 2930909899 |
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| R-Sätze (R) | 36/37/38 |
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| Sicherheitshinweise (S) | 26-37 |
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![Molekülstruktur von 2,2'-[Methylenbis(thio)]bisessigsure](/img/chemical/74949.png)