D-(-)-Aspartic acid 99+%

Supplier: Thermo Scientific

Synonyms: D(-)-2-Amino-1,4-butanedioic acid, (R)-(-)-2-Amino-1,4-butanedioic acid, (R)-(-)-Aspartic acid, (R)-2-Aminosuccinic acid, H-D-Asp-OH

204260250 204260050 204261000
ACRO204260250EA 139 GBP
ACRO204260250 ACRO204260050 ACRO204261000
D-(-)-Aspartic acid 99+%
D(-)-Aspartic acid
Formula: C₄H₇NO₄
MW: 133,1 g/mol
Melting Pt: >300 °C
Storage Temperature: Ambient
MDL Number: MFCD00063081
CAS Number: 1783-96-6
EINECS: 217-234-6
Merck Index: 13,00845

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Specification Test Results

Appearance White to off-white Crystalline powder
Infrared spectrum Conforms
Loss on drying ≤0.4 % (105°C, 3 hrs)
Enantiomeric excess ≤0.5 % (L-enantiomer)
Residue after ignition ≤0.1 %
Specific optical rotation -23.8° to -25.8° (20°C, 589 nm) (c=5, 5 N HCl)
Titration with NaOH ≥99.0 %
Other amino acids ≤0.3 % (TLC)

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