H-Asp(OtBu)-OH CAS 3057-74-7 L-Aspartic Acid 4-tert-Butyl Ester Purity >98.0% (HPLC)

Short Description:

Name: L-Aspartic Acid 4-tert-Butyl Ester

Synonyms: H-Asp(OtBu)-OH

CAS: 3057-74-7

Purity: >98.0% (HPLC)

Appearance: 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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Product Detail

Product Tags

Description:

Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of L-Aspartic Acid 4-tert-Butyl Ester (H-Asp(OtBu)-OH) (CAS: 3057-74-7) with high quality. Ruifu Chemical supplys a series of amino acids and derivatives. We can provide worldwide delivery, competitive price, small and bulk quantities available. Purchase H-Asp(OtBu)-OH , Please contact: alvin@ruifuchem.com

Chemical Properties:

Chemical Name	L-Aspartic Acid 4-tert-Butyl Ester
Synonyms	H-Asp(OtBu)-OH; L-Aspartic Acid β-tert-Butyl Ester; 4-tert-Butyl L-Aspartate; β-tert-Butyl L-Aspartate; L-Aspartic Acid 4-(1,1-Dimethylethyl) Ester; (S)-2-Amino-4-tert-Butoxy-4-Oxobutanoic Acid; Aspartic Acid β-tert-Butyl Ester
Stock Status	In Stock
CAS Number	3057-74-7
Molecular Formula	C8H15NO4
Molecular Weight	189.21 g/mol
Melting Point	170.0~190.0℃
Density	1.162±0.06 g/cm3
Sensitive	Hygroscopic
Storage Temp.	Cool & Dry Place (2~8℃)
COA & MSDS	Available
Category	Amino Acids and Derivatives
Brand	Ruifu Chemical

Specifications:

Items	Inspection Standards	Results
Appearance	White Powder	White Powder
Specific Rotation [α]20/D	-9.0°±2.0° (C=1, MeOH:H2O=4:1)	-8.5°
Melting Point	170.0~190.0℃	174.0~178.0℃
Purity / Analysis Method	>98.0% (HPLC)	98.8%
Clarity of Solution	0.3 gram in 2ml TFA Clear Solution	Complies
TLC Analysis	One Spot	One Spot
Mass Spectrum	In Accordance With the Standard	Complies
NMR Spectrum	In Accordance With the Standard	Complies
Conclusion	The product has been tested & complies with the given specifications

Package & Storage:

Package: Fluorinated Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement.

Storage Condition: Store in sealed containers at cool and dry (2~8℃) warehouse away from incompatible substances. Protect from light and moisture.

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

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 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.

3057-74-7 - Risk and Safety:

Risk Codes 36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description S22 - Do not breathe dust.
S24/25 - Avoid contact with skin and eyes.
S44 -
S35 - This material and its container must be disposed of in a safe way.
S28 - After contact with skin, wash immediately with plenty of soap-suds.
S7 - Keep container tightly closed.
S4 - Keep away from living quarters.
WGK Germany 3
HS Code 2922491990

Application:

L-Aspartic Acid 4-tert-Butyl Ester (H-Asp(OtBu)-OH) (CAS: 3057-74-7) is an aspartic acid derivative. Amino acids and derivatives, used in peptide synthesis, organic synthesis intermediates, pharmaceutical intermediates, biochemical reagents, chemical reagents.