2,2'-((Oxybis(ethane-2,1-diyl))bis(oxy))diethanol

Modify Date: 2026-07-02 02:09:15

2,2'-((Oxybis(ethane-2,1-diyl))bis(oxy))diethanol Structure
2,2'-((Oxybis(ethane-2,1-diyl))bis(oxy))diethanol structure
Common Name 2,2'-((Oxybis(ethane-2,1-diyl))bis(oxy))diethanol
CAS Number 112-60-7 Molecular Weight 194.225
Density 1.1±0.1 g/cm3 Boiling Point 328.0±0.0 °C at 760 mmHg
Molecular Formula C8H18O5 Melting Point -5.6 °C(lit.)
MSDS Chinese USA Flash Point 176.7±0.0 °C

 Use of 2,2'-((Oxybis(ethane-2,1-diyl))bis(oxy))diethanol


PROTAC Linker 18 is a PROTAC linker, which refers to the alkyl/ether composition. PROTAC Linker 18 can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1].

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name tetraethylene glycol
Synonym More Synonyms

  Biological Activity

This table contains bioactivity, target information and biological‑assay experimental data of this compound.

Description PROTAC Linker 18 is a PROTAC linker, which refers to the alkyl/ether composition. PROTAC Linker 18 can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1].
Related Catalog
Target

Alkyl/ether

References

[1]. An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562.

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.1±0.1 g/cm3
Boiling Point 328.0±0.0 °C at 760 mmHg
Melting Point -5.6 °C(lit.)
Molecular Formula C8H18O5
Molecular Weight 194.225
Flash Point 176.7±0.0 °C
Exact Mass 194.115417
PSA 68.15000
LogP -2.23
Vapour density 6.7 (vs air)
Vapour Pressure 0.0±1.6 mmHg at 25°C
Index of Refraction 1.455
InChIKey UWHCKJMYHZGTIT-UHFFFAOYSA-N
SMILES OCCOCCOCCOCCO
Stability Stable. Incompatible with strong oxidizing agents, strong bases.
Water Solubility soluble

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
XC2100000
CHEMICAL NAME :
Tetraethylene glycol
CAS REGISTRY NUMBER :
112-60-7
BEILSTEIN REFERENCE NO. :
1634320
LAST UPDATED :
199712
DATA ITEMS CITED :
11
MOLECULAR FORMULA :
C8-H18-O5
MOLECULAR WEIGHT :
194.26
WISWESSER LINE NOTATION :
Q2O2O2O2Q

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Open irritation test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
28900 uL/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>20 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TEST SYSTEM :
Rodent - mouse
DOSE/DURATION :
2500 mg/kg
REFERENCE :
EPASR* United States Environmental Protection Agency, Office of Pesticides and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW, Washington, DC 20460) History unknown. Volume(issue)/page/year: 8EHQ-0987-0693 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84662 No. of Facilities: 206 (estimated) No. of Industries: 7 No. of Occupations: 12 No. of Employees: 1685 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84662 No. of Facilities: 3704 (estimated) No. of Industries: 40 No. of Occupations: 44 No. of Employees: 55282 (estimated) No. of Female Employees: 1585 (estimated)

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Personal Protective Equipment Eyeshields;Gloves;half-mask respirator (US);multi-purpose combination respirator cartridge (US)
Hazard Codes C
Risk Phrases 36/37/38
Safety Phrases S24/25
RIDADR NONH for all modes of transport
WGK Germany 2
RTECS XC2100000
HS Code 2942000000

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2909499000
Summary 2909499000. ether-alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:5.5%. General tariff:30.0%

 Articles14

More Articles

This table lists relevant public references with title, journal and publication metadata for this compound.

Preparation and application of sol-gel acrylate and methacrylate solid-phase microextraction fibres for gas chromatographic analysis of organoarsenic compounds.

Anal. Chim. Acta 837 , 52-63, (2014)

Novel solid-phase microextraction (SPME) fibres containing methyl, ethyl, butyl acrylate and methacrylate were first prepared by a sol-gel technique and investigated for determination of selected orga...

The novel semi-biodegradable interpenetrating polymer networks based on urethane-dimethacrylate and epoxy-polyester components as alternative biomaterials.

Acta Bioeng. Biomech. 17 , 13-22, (2015)

This paper presents the pilot study aimed at the development of new full interpenetrating polymer networks based on urethane- dimethacrylate and biodegradable epoxy-polyester as the proposition of new...

Sustained release of TGF-β1 from biodegradable microparticles prepared by a new green process in CO2 medium.

Int. J. Pharm. 493 , 357-65, (2015)

The aim of this work was to encapsulate transforming growth factor β1 (TGF-β1) into PLGA microparticles for regenerative medicine applications. TGF-β1 was firstly precipitated to ensure its stability ...

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

2,2'-[Oxybis(2,1-ethanediyloxy)]diethanol
2,2'-((Oxybis(ethane-2,1-diyl))bis(oxy))diethanol
Tetra(ethylene glycol)
2,2'-[Oxybis(ethane-2,1-diyloxy)]diethanol
MFCD00002879
Tetraglycol
Ethyl acetate
Tetraethylene glycol
2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethanol
EINECS 203-989-9
Bis[2-(2-hydroxyethoxy)ethyl] ether
Bis[2-(2-hydroxyethoxy)ethyl]ether
tetraethylene glycol-
tetraethyleneglycol
PEG-4

  | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What English synonyms does tetraethylene glycol have?
A: English synonyms of tetraethylene glycol: 2,2'-[Oxybis(2,1-ethanediyloxy)]diethanol, 2,2'-((Oxybis(ethane-2,1-diyl))bis(oxy))diethanol, Tetra(ethylene glycol), 2,2'-[Oxybis(ethane-2,1-diyloxy)]diethanol, MFCD00002879, Tetraglycol, Ethyl acetate, Tetraethylene glycol, 2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethanol, EINECS 203-989-9, Bis[2-(2-hydroxyethoxy)ethyl] ether, Bis[2-(2-hydroxyethoxy)ethyl]ether, tetraethylene glycol-, tetraethyleneglycol, PEG-4.
Q: What are the uses of tetraethylene glycol?
A: Main uses of tetraethylene glycol: PROTAC Linker 18 is a PROTAC linker, which refers to the alkyl/ether composition. PROTAC Linker 18 can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1].
Q: What is the safety information for tetraethylene glycol?
A: Safety information for tetraethylene glycol: S24/25.
Q: What is the LogP of tetraethylene glycol?
A: LogP of tetraethylene glycol is -2.23.
Q: What are the downstream products of tetraethylene glycol?
A: Related downstream products(CAS) of tetraethylene glycol: 105891-51-8;10522-26-6;1208234-08-5;112370-99-7;106-07-0;33941-15-0;57602-02-5;39160-70-8;33089-37-1;71092-61-0.
Q: What is the boiling point of tetraethylene glycol?
A: Boiling point of tetraethylene glycol is 328.0±0.0 °C at 760 mmHg.
Q: What are the upstream materials of tetraethylene glycol?
A: Related upstream materials(CAS) of tetraethylene glycol: 107-21-1;111-44-4;62732-91-6;111-90-0;111-46-6;75-21-8;81194-61-8;112-26-5;106-93-4;7388-28-5.
Q: What is the molecular weight of tetraethylene glycol?
A: Molecular weight of tetraethylene glycol is 194.225.
Q: What is the SMILES notation of tetraethylene glycol?
A: SMILES notation of tetraethylene glycol is OCCOCCOCCOCCO.
Q: How is the water solubility of tetraethylene glycol?
A: Water solubility of tetraethylene glycol: soluble.

 factory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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