L-thyroxine 97+%
Supplier: Thermo Scientific
Synonyms:
(S)-2-Amino-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)propanoic acid
215660010
215660050
215662500
ACRO215660010EA
282
GBP
ACRO215660010
ACRO215660050
ACRO215662500
L-thyroxine 97+%
L-thyroxine
Formula:
C₁₅H₁₁I₄NO₄ MW: 776,874 g/mol Melting Pt: 235…236 °C (dec.) Storage Temperature: Refrigerator |
MDL Number:
MFCD00002595 CAS Number: 51-48-9 |
Specification Test Results
Appearance | White to beige Powder |
Infrared spectrum | Conforms |
Loss on drying | ≤1.0 % (110°C, 4 h) |
HPLC | ≥97.0 % |
Specific optical rotation | -4.0° to -6.0° (20°C, 589 nm) (c=1,1N NaOH:EtOH 1:2) (on dried substance) |
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