H-D-Asp(OBzl)-OBzl·TosOH CAS 4079-64-5 Assay ≥98.0% (HPLC)

Short Description:

D-Aspartic Acid Dibenzyl Ester p-Toluenesulfonate

Synonyms: H-D-Asp(OBzl)-OBzl·TosOH 

CAS: 4079-64-5

Assay: ≥98.0% (HPLC)

Appearance: White to Off-White Powder

Amino Acids and Derivatives, High Quality

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com


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4079-64-5 - Description:

Shanghai Ruifu Chemical is the leading manufacturer of D-Aspartic Acid Dibenzyl Ester p-Toluenesulfonate (H-D-Asp(OBzl)-OBzl·TosOH) (CAS: 4079-64-5) with high quality. Ruifu Chemical has been supplying amino acids and derivatives more than 15 years. Ruifu Chemical can provide competitive price and excellent service.
Purchase H-D-Asp(OBzl)-OBzl·TosOH or other products, please contact us by e-mail: alvin@ruifuchem.com

4079-64-5 - Chemical Properties:

Chemical Name D-Aspartic Acid Dibenzyl Ester p-Toluenesulfonate
Synonyms H-D-Asp(OBzl)-OBzl·TosOH; D-Aspartic Acid Dibenzyl Ester p-Toluenesulfonate; D-Aspartic Acid Dibenzyl Ester 4-Toluenesulfonate; D-Aspartic Acid (OBzl)-OBzl p-Tosylate; D-Aspartic Acid Dibenzylester Tosylate Salt; Dibenzyl D-Aspartate p-Toluenesulfonate; Dibenzoyl D-Aspartate p-Toluenesulphonate
CAS Number 4079-64-5
Molecular Formula C18H19NO4.C7H8O3S
Molecular Weight 485.55 g/mol
Melting Point 150.0-160.0℃ 
Solubility  Soluble in Chloroform
Storage Temperature Store Long-Term at 2-8℃
COA & MSDS Available
Origin of Product    Shanghai, China
Product Categories
Amino Acids and Derivatives 
Brand Ruifu Chemical

4079-64-5 - Specifications:

Items Specifications  Results
Appearance White to Off-White Powder  White Powder        
Specific Rotation [α]20/D -8.0°±2.0° (C=2, Chloroform) -8.1°
Melting Point 150.0-160.0℃ 155.0-158.0℃
Clarity of Solution  0.3 gram in 2ml MeOH Clear Solution  Conforms
Water by Karl Fischer  ≤1.00% 0.21%
Assay / Analysis Method ≥98.0% (HPLC)  99.15%
MS Spectrum Conforms to Structure   Conforms 
NMR Spectrum Conforms to Structure   Conforms   
Conclusion The product has been tested and complies with the given specifications

4079-64-5 - Package/Storage/Shipping:

Package: Fluorinated bottle, Aluminium foil bag, 25kg/cardboard drum, or according to customer's requirement.
Storage Condition: Keep the container tightly closed. Store in a cool, dry (2-8℃) and well-ventilated warehouse away from incompatible substances. Keep away from sunshine; avoid fire and heat sources; avoid moisture.
Shipping: Deliver to worldwide by air, by FedEx / DHL Express. Provide fast and reliable delivery. 

4079-64-5 - Advantages:

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

4079-64-5 - FAQ:

How to Purchase? Please contact Dr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com 

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. 

4079-64-5 - Applications:

D-Aspartic Acid Dibenzyl Ester p-Toluenesulfonate (synonyms: H-D-Asp(OBzl)-OBzl·TosOH) (CAS: 4079-64-5) has been used as a chiral building block in the synthesis of various organic compounds, including amino acids, peptides, pharmaceutical development and drug discovery, and other biologically active molecules.

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