ChemicalBook >> CAS DataBase List >>Sodium tert-butoxide
Sodium tert-butoxide
- CAS No.
- 865-48-5
- Chemical Name:
- Sodium tert-butoxide
- Synonyms
- sodium 2-methylpropan-2-olate;SODIUM T-BUTOXIDE;SODIUM TERTIARY BUTOXIDE;STB;NatB;SODIUM TERT-BUTYLATE;Sodium ter-butoxide;Sodium tert-;tert-Butyloxysodium;Sodium tert-butoxide ,99%
- CBNumber:
- CB8169233
- Molecular Formula:
- C4H9NaO
- Molecular Weight:
- 96.1
- MDL Number:
- MFCD00040575
- MOL File:
- 865-48-5.mol
- MSDS File:
- SDS
Last updated:2026-01-13 11:25:35
| Product description | Number | Pack Size | Price |
| Sodium tert-butylate for synthesis | 8.18374 | 100g | $74.4 |
| Sodium tert-butoxide ChemBeads | 938785 | 1 unit | $78.2 |
| Sodium tert-butylate for synthesis | 8.18374 | 1kg | $168 |
| Sodium tert-butylate for synthesis | 8.18374 | 5kg | $670 |
| Sodium tert-butoxide 97% | 359270 | 5g | $38.66 |
| More product size | |||
| Melting point | 180 °C |
|---|---|
| Boiling point | 180°C/1mmHg |
| bulk density | 400kg/m3 |
| Density | 1,104 g/cm3 |
| vapor pressure | 0Pa at 20℃ |
| refractive index | n20/D1.413 |
| Flash point | 12°C |
| storage temp. | Store below +30°C. |
| solubility | very slightly in Tetrahydrofuran |
| form | Powder |
| color | white to off-white |
| Specific Gravity | 1.104 |
| Water Solubility | reacts |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| Sensitive | Air Sensitive & Hygroscopic |
| BRN | 3654215 |
| InChI | 1S/C4H9O.Na/c1-4(2,3)5;/h1-3H3;/q-1;+1 |
| InChIKey | MFRIHAYPQRLWNB-UHFFFAOYSA-N |
| SMILES | [Na+].CC(C)(C)[O-] |
| CAS DataBase Reference | 865-48-5(CAS DataBase Reference) |
| EPA Substance Registry System | 2-Propanol, 2-methyl-, sodium salt (865-48-5) |
| UNSPSC Code | 12352107 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS02,GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H228-H251-H314 | |||||||||
| Precautionary statements | P210-P235-P260-P280-P303+P361+P353-P305+P351+P338 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges | |||||||||
| Hazard Codes | F,C,Xi | |||||||||
| Risk Statements | 11-14-34-37-35-36/37/38-40-19 | |||||||||
| Safety Statements | 26-36/37/39-43-45-7/8-8-16-36 | |||||||||
| RIDADR | UN 3206 4.2/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 1-3-10 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 4.2 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29051900 | |||||||||
| Storage Class | 4.2 - Pyrophoric and self-heating hazardous materials | |||||||||
| Hazard Classifications | Eye Dam. 1 Flam. Sol. 1 Self-heat. 1 Skin Corr. 1B |
|||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) | |||||||||
| NFPA 704 |
|
Sodium tert-butoxide price More Price(50)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 8.18374 | Sodium tert-butylate for synthesis | 865-48-5 | 100g | $74.4 | 2025-07-31 | Buy |
| Sigma-Aldrich | 938785 | Sodium tert-butoxide ChemBeads | 865-48-5 | 1 unit | $78.2 | 2025-07-31 | Buy |
| Sigma-Aldrich | 8.18374 | Sodium tert-butylate for synthesis | 865-48-5 | 1kg | $168 | 2025-07-31 | Buy |
| Sigma-Aldrich | 8.18374 | Sodium tert-butylate for synthesis | 865-48-5 | 5kg | $670 | 2025-07-31 | Buy |
| Sigma-Aldrich | 359270 | Sodium tert-butoxide 97% | 865-48-5 | 5g | $38.66 | 2025-07-31 | Buy |
Sodium tert-butoxide Chemical Properties,Uses,Production
Chemical Properties
white to light tan crystalline powder
Uses
Sodium tert-butoxide is used as a strong base and a non-nucleophilic base. In organic synthesis, it serves as an intermediate in various reactions like condensation, rearrangement and ring-opening. Further, it finds use in agrochemicals, pharmaceuticals, colorants, aroma chemicals, detergents and biodiesel. It acts as a catalyst in polymerization and isomerization reactions.
Flammability and Explosibility
Highly flammable
Purification Methods
Its solubility in tert-BuOH is 0.208M at 30.2o and 0.382M at 60o, and it is quite soluble in tetrahydrofuran (32g/100g). It should not be used if it has a brown colour. [Feuer J Am Chem Soc 78 4364 1956, Hurd Inorg Synth I 87 1939, IR: Seubold J Org Chem 21 156 1956, Beilstein 1 IV 1609.]
Sodium tert-butoxide Preparation Products And Raw materials
Raw materials
Preparation Products
methyl 3-(2-chloro-3，3，3-trifluoro-1-propenyl)-2，2-di-methyl-cyclopropane carboxylate
N,N'-Di-1-naphthyl-N,N'-diphenylbenzidine (NPB)
7-Methoxycoumarin
6,6'-Dimethyl-2,2'-dipyridyl
5,5'-DIMETHYL-2,2'-DIPYRIDYL
tert-Butanol
4-BENZYLOXY-2-CHLOROPYRIMIDINE
2,4,5-Trifluorophenylacetic acid
3-MORPHOLINOPHENOL
3-Morpholinobenzaldehyde
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|---|---|---|---|---|---|
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View Lastest Price from Sodium tert-butoxide manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-01-27 | Sodium tert-butoxide
865-48-5
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-01-05 | Sodium tert-butoxide
865-48-5
|
US $1.00 / KG | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-09-25 | sodium tert-butoxide
865-48-5
|
US $6.00-0.60 / KG | 1KG | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd |
-
- Sodium tert-butoxide
865-48-5
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- Sodium tert-butoxide
865-48-5
- US $1.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- sodium tert-butoxide
865-48-5
- US $6.00-0.60 / KG
- 99%
- Henan Fengda Chemical Co., Ltd
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