3,6,9-Trioxaundecanedioic acid
Synonym(s):O,O′-Oxydiethylene-diglycolic acid
- CAS NO.：13887-98-4
- Empirical Formula: C8H14O7
- Molecular Weight: 222.19
- MDL number: MFCD00044099
- EINECS: 237-655-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:56:12
What is 3,6,9-Trioxaundecanedioic acid?
Description
PEG3-(CH2CO2H)2 is a PEG linker containing two terminal carboxylic acid groups. The hydrophilic PEG spacer increases solubility in aqueous media. The terminal carboxylic acids can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond.
Flammability and Explosibility
Not classified
Properties of 3,6,9-Trioxaundecanedioic acid
| Boiling point: | 443.7±30.0 °C(Predicted) |
| Density | 1.3 g/mL at 20 °C(lit.) |
| vapor pressure | 0Pa at 20℃ |
| refractive index | n |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Soluble in Water, DMSO, DCM, DMF |
| pka | 3.09±0.10(Predicted) |
| form | Solid-Liquid Mixture |
| color | Off-white to yellow |
| PH | 1.8 (100g/l, H2O) |
| BRN | 1962084 |
Safety information for 3,6,9-Trioxaundecanedioic acid
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H318:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 3,6,9-Trioxaundecanedioic acid
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