Sodium tert-Butoxide CAS 865-48-5 Purity >99.0% (T)

Short Description:

Chemical Name: Sodium tert-Butoxide

Synonyms: STB; Sodium t-Butoxide 

CAS: 865-48-5

Purity: >99.0% (Titration)

Appearance: White to Off-White Powder 

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401


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865-48-5 - Description:

Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of Sodium tert-Butoxide (STB) (CAS: 865-48-5) with high quality. Ruifu Chemical can provide worldwide delivery, competitive price, excellent service, small and bulk quantities available. Purchase Sodium tert-Butoxide, Please contact:

865-48-5 - Chemical Properties:

Chemical Name Sodium tert-Butoxide 
Synonyms STB; Sodium t-Butoxide; Sodium 2-Methylpropan-2-Olate; Sodium tert-Butanolate, Sodium tert-Butylate
Stock Status In Stock, Production Capacity 3000 Tons per Year 
CAS Number 865-48-5
Molecular Formula C4H9NaO
Molecular Weight 96.10  
Melting Point 270℃ 
Store Under Inert Gas Store Under Inert Gas
Sensitive Hygroscopic. Air Sensitive
Hydrolytic Sensitivity 7: Reacts Slowly with Moisture / Water
Solubility  Very Slightly in Tetrahydrofuran  
COA & MSDS Available
Sample  Available
Origin Shanghai, China
Shelf Life 2 Years When Properly Stored
Brand Ruifu Chemical

865-48-5 - Specifications:

Items Specifications  Results
Appearance White to Off-White Powder  Complies      
Purity / Analysis Method >99.0% (Titration)  99.8% 
NaOH + Na2CO3 (as NaOH) <1.50% Complies 
Infrared Spectrum Consistent with Structure Complies 
Conclusion The product has been tested and complies with the given specifications


Package: Fluorinated Bottle, 25kg/Bag, 25kg/Cardboard Drum, or according to customer's requirement.
Storage Condition: Keep the container tightly closed and store in a cool, dry and well-ventilated warehouse away from incompatible substances. Keep away from strong, direct light. Avoid fire; avoid moisture.  
Shipping: Deliver to worldwide by air, by FedEx / DHL Express. Provide fast and reliable delivery. 


Sufficient Capacity: Sufficient facilities and technicians

Professional Service: One stop purchasing service

OEM Package: Custom package and label available

Fast Delivery: If within stock, three days delivery guaranteed

Stable Supply: Maintain reasonable stock    

Technical Support: Technology solution available

Custom Synthesis Service: Ranged from grams to kilos

High Quality: Established a complete quality assurance system


How to Purchase? Please contact Dr. Alvin Huang: or 

15 Years Experience? We have more than 15 years of experience in the manufacture and export of a wide range of high quality pharmaceutical intermediates or fine chemicals.

Main Markets? Sell to domestic market, North America, Europe, India, Korea, Japanese, Australia, etc.

Advantages? Superior quality, affordable price, professional services and technical support, fast delivery.

Quality AssuranceStrict quality control system. Professional equipment for analysis include NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, K.F, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, etc.

SamplesMost products provide free samples for quality evaluation, shipping cost should be paid by customers.

Factory AuditFactory audit welcome. Please make an appointment in advance.

MOQ? No MOQ. Small order is acceptable.

Delivery Time? If within stock, three days delivery guaranteed.

TransportationBy Express (FedEx, DHL), by Air, by Sea.

Documents? After sales service: COA, MOA, ROS, MSDS, etc. can be provided.

Custom SynthesisCan provide custom synthesis services to best fit your research needs.

Payment TermsProforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T (Telex Transfer), PayPal, Western Union, etc. 

865-48-5 - Risk and Safety:

Risk Codes
R11 - Highly Flammable
R14 - Reacts violently with water
R34 - Causes burns
R37 - Irritating to the respiratory system
R35 - Causes severe burns
R36/37/38 - Irritating to eyes, respiratory system and skin.
R40 - Limited evidence of a carcinogenic effect
R19 - May form explosive peroxides
Safety Description
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.)
S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S7/8 -
S8 - Keep container dry.
S16 - Keep away from sources of ignition.
S36 - Wear suitable protective clothing.
UN IDs UN 3206 4.2/PG 2
WGK Germany 3
HS Code 2905199090
Hazard Class 4.2
Packing Group II

865-48-5 - Application:

Sodium tert-Butoxide (STB) (CAS: 865-48-5) 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. Sodium tert-Butoxide is used as an intermediate in organic synthesis and a pharmaceutical intermediate. Sodium tert-Butoxide more and more by the fine chemical and pesticide, pharmaceutical industry. Stable under normal temperature and pressure, avoid strong reducing agent, moisture, air, acid contact.

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