Basic information
- Standard SMILES
OCCSSCCO- InChIKey
KYNFOMQIXZUKRK-UHFFFAOYSA-N- Molecular formula
- C4H10O2S2
- Average molar mass
- 154.3 g/mol
- Monoisotopic mass
- 154.01222156
Overview
2,2'-dithiodiethanol is an organic disulfide.
Names & identifiers
- Preferred name
- Hydroxyethyl disulfide
- IUPAC
- 2-(2-hydroxyethyldisulfanyl)ethanol
- English name
- 2,2'-Dithiodiethanol
- Molecular formula
- C4H10O2S2
- Molecular weight
- 154.25
Names & synonyms
Show more names
Database identifiers
- CAS
1892-29-1- PubChem CID
- 15906
- DTXSID
DTXSID4044404- ChEMBL
CHEMBL1233278- ChEBI
CHEBI:43136- UNII
- 45543L74BS
- EC Number
- 217-576-6
- Nikkaji
- J49.832G
Properties
Computed structural properties
- XLogP
- -0.5
- Topological polar surface area
- 91.1 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 5
- Heavy atoms
- 8
- Formal charge
- 0
- Complexity
- 37
Experimental & physicochemical properties
Boiling Point
158-163 °C at 3.50E+00 mm Hg
160 °C @760 [mm Hg]
Physical Description
Liquid
Colorless viscous liquid with an unpleasant odor; Melting point approximately 25 deg C; [Alfa Aesar MSDS]
Physicochemical properties
- Melting point
- 25 · 25-27 °C (lit.)
- Boiling point
- 158 · 158-163 °C/3.5 mmHg (lit.)
- Density
- 1.261 g/mL · 1.261 g/mL at 25 °C (lit.)
- vapor pressure
- 0.001 Pa · 0.001Pa at 20℃
- refractive index
- 20 · n20/D 1.57(lit.)
- Flash point
- 230 °F · >230 °F
- storage temp.
- Sealed in dry,Room Temperature
- form
- liquid
- pka
- 14.02 · 14.02±0.10(Predicted)
- color
- Colorless to Almost colorless
- Water Solubility
- Soluble in water, ethanol, acetone, and ether.
- λmax
- 247 nm · 247nm(H2O)(lit.)
- BRN
- 1735851 · 1735851
- InChI
- 1S/C4H10O2S2/c5-1-3-7-8-4-2-6/h5-6H,1-4H2
- InChIKey
- KYNFOMQIXZUKRK-UHFFFAOYSA-N
- SMILES
- OCCSSCCO
- LogP
- -0.3 at · -0.3 at 19.9℃
- CAS DataBase Reference
- 1892 · 1892-29-1(CAS DataBase Reference)
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 45543 L74BS · 45543L74BS
- EPA Substance Registry System
- 2 · Ethanol, 2,2'-dithiobis- (1892-29-1)
- UNSPSC Code
- 12162002 · 12162002
- NACRES
- 23 · NA.23
- Symbol(GHS)
- 5 · GHS05,GHS06
- Signal word
- Danger
- Hazard statements
- 301 · H301-H318
- Precautionary statements
- 264 · P264-P270-P280-P301+P310-P305+P351+P338-P405
- PPE
- Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
- Hazard Codes
- T
- Risk Statements
- 25 · 25-41
- Safety Statements
- 26 · 26-39-45
- RIDADR
- 2811 · UN 2811 6.1/PG 3
- WGK Germany
- 3 · 3
- RTECS
- 7525000 · KK7525000
- F
- 13 · 13
- TSCA
- TSCA listed
- HazardClass
- 6.1 · 6.1
- PackingGroup
- III
- HS Code
- 29309099 · 29309099
- Storage Class
- 6.1 C · 6.1C - Combustible acute toxic Cat.3toxic compounds or compounds which causing chronic effects
- Hazard Classifications
- 3 OralEye · Acute Tox. 3 OralEye Dam. 1
- REACH Registrations
- Active
- Limited Quantities
- 5 L · 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
- Excepted Quantities
- Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
Safety & regulation
GHS classification
GHS Classification
Danger
H301+H311 (37.4%): Toxic if swallowed or in contact with skin [Danger Acute toxicity, oral; acute toxicity, dermal]
P261, P262, P264, P264+P265, P270, P272, P273, P280, P301+P316, P301+P317, P302+P352, P305+P351+P338, P305+P354+P338, P316, P317, P321, P330, P333+P317, P337+P317, P361+P364, P362+P364, P391, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 278 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Ethanol, 2,2'-dithiobis-
Ethanol, 2,2'-dithiobis- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Ethanol, 2,2'-dithiobis- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
REACH registered substance: 2,2'-dithiobisethanol (EC: 217-576-6)
Ethanol, 2,2'-dithiobis-: Does not have an individual approval but may be used under an appropriate group standard
Safety & protection
Protective Action Criteria (PAC)
0.52 [mg/m3]
5.7 [mg/m3]
34 [mg/m3]
Safety data
- F
- 13
- PPE
- Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- KK7525000
- ridadr
- UN 2811 6.1/PG 3
- hs_code
- 29309099
- risk_code
- 25-41
- Signal word
- Danger
- Symbol(GHS)
- GHS05,GHS06
- hazard_code
- T
- safety_code
- 26-39-45
- hazard_class
- 6.1
- Storage Class
- 6.1C - Combustible acute toxic Cat.3toxic compounds or compounds which causing chronic effects
- packing_group
- III
- Hazard statements
- H301-H318
- Limited Quantities
- 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
- Excepted Quantities
- Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
- REACH Registrations
- Active
- Hazard Classifications
- Acute Tox. 3 OralEye Dam. 1
- Precautionary statements
- P264-P270-P280-P301+P310-P305+P351+P338-P405
Chemistry & industry
Uses & manufacturing
General Manufacturing Information
All Other Basic Organic Chemical Manufacturing
Ethanol, 2,2'-dithiobis-: ACTIVE
Applications
UsesBis(2-hydroxyethyl) disulfide is used as an intermediate in chemical research.
Upstream & downstream products
Downstream products
Suppliers50 total
Additional notes
DefinitionChEBI: 2,2'-dithiodiethanol is an organic disulfide.
Related reactions
Linked notes
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