L-thyroxine 97+%

Supplier: THERMO FISHER SCIENTIFIC CHEMICALS
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21566-0010 21566-0050 21566-2500
TS21566-0010EA 124 USD
TS21566-0010 TS21566-0050 TS21566-2500
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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