Product Details
Place of Origin: China
Brand Name: Sunshine
Certification: ISO GMP
Model Number: CAS 3057-74-7
Payment & Shipping Terms
Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: Aluminum Foil Bag, Drum
Delivery Time: 7 working days
Payment Terms: L/C, D/A, T/T
Supply Ability: TON/month
CAS No:: |
3057-74-7 |
Appearance:: |
White Solid |
Molecular Formula:: |
C8H15NO4 |
Molecular Weight:: |
189.21g/cm3 |
EINECS NO:: |
221-292-8 |
MDL NO.:: |
MFCD00038577 |
CAS No:: |
3057-74-7 |
Appearance:: |
White Solid |
Molecular Formula:: |
C8H15NO4 |
Molecular Weight:: |
189.21g/cm3 |
EINECS NO:: |
221-292-8 |
MDL NO.:: |
MFCD00038577 |
Product Description:
Product Name: H-Asp(OtBu)-OH CAS 3057-74-7
Synonyms:
(2S)-2-Amino-4-[(2-methyl-2-propanyl)oxy]-4-oxobutanoic acid;
L-Aspartic acid 4-tert-Butyl ester;
L-Aspartic acid, 4-(1,1-dimethylethyl) ester;
Chemical & Physical Properties
Appearance: White solid
Assay: ≥98%
Melting point: 220 ℃ (dec.)
Boiling point: 318.7 ± 37.0 ℃
Density: 1.162 ± 0.06 g/cm³
Solubility: Soluble in methanol (slightly), water (slightly, after ultrasonic treatment)
Acidity coefficient (pKa) : 2.19 ± 0.23
Stability: Hygroscopicity
Safety Information
Risk Statements: R36/37/38
Safety Statements: S22-S24/25
WGK Germany: 3
HS Code: 2922509090
Application: L-aspartic acid-4-tert-butyl ester, abbreviated as Asp(OtBu), can be prepared by the reaction of aspartic acid with isobutylene. It has been reported in the literature that it can be used to prepare (Asp)8-ODN couplings.
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