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

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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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