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Z-Asp-OBzl CAS 4779-31-1 Purity >98.0% (HPLC)

Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of Z-Asp-OBzl (CAS: 4779-31-1) with high quality. Ruifu Chemical can provide worldwide delivery, competitive price, excellent service, small and bulk quantities available. Purchase Z-Asp-OBzl (CAS: 4779-31-1), Please contact: alvin@ruifuchem.com

Chemical Name Z-Asp-OBzl  
Synonyms Cbz-Asp-OBzl; Z-L-Aspartic Acid α-Benzyl Ester; Cbz-L-Aspartic Acid α-Benzyl Ester; Cbz-L-Asp-alpha-Benzyl Ester; N-Benzyloxycarbonyl-L-Aspartic Acid 1-Benzyl Ester; N-Carbobenzyloxy-L-Aspartic Acid 1-Benzyl Ester; (S)-4-(Benzyloxy)-3-[(Benzyloxycarbonyl)amino]-4-Oxobutyric Acid
Stock Status In Stock, Commercial Production  
CAS Number 4779-31-1
Molecular Formula C19H19NO6
Molecular Weight 357.36 g/mol
Melting Point 83.0~85.0℃ 
Density 1.293±0.06 g/cm3 
Solubility Soluble in Acetone, Chloroform, DMSO, Ether, Methanol
COA & MSDS Available
Place of Origin  Shanghai, China
Brand Ruifu Chemical
Items Specifications Results
Appearance White or Off-White Crystalline Powder Conforms               
Specific Rotation [α]20/D -20.0°±2.0° (C=1 in MeOH) -18.5°
Melting Point 83.0~85.0℃ 83.0~85.0℃
Water by Karl Fischer <0.50% 0.15%
Z-Asp-OBzl Purity >98.0% (HPLC) 98.73%
Infrared Spectrum Conforms to Structure Conforms
NMR Spectrum Conforms to Structure Conforms
Conclusion The product has been tested and complies with the given specifications 

Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement.
Storage Condition: Keep the container tightly closed and store in a cool, dry (2~8℃) and well-ventilated warehouse away from incompatible substances. Protect from light and moisture.
Shipping: Deliver to worldwide by air, by FedEx / DHL Express. Provide fast and reliable delivery. 

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 Assurance? Strict 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.

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

Factory Audit? Factory audit welcome. Please make an appointment in advance.

MOQ? No MOQ. Small order is acceptable.

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

Transportation? By Express (FedEx, DHL), by Air, by Sea.

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

Custom Synthesis? Can provide custom synthesis services to best fit your research needs.

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

Z-Asp-OBzl (CAS: 4779-31-1) is an aspartic acid derivative, is used in biochemical reagents and peptide synthesis, also used as an organic synthesis intermediate, pharmaceutical intermediate.