L-Threonine ≥98.5%, Ultrapure

Supplier: Thermo Scientific
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J22290.A1 J22290.22
J22290.A1EA 637 GBP
J22290.A1 J22290.22
L-Threonine ≥98.5%, Ultrapure
L-Threonine
Formula: C₄H₉NO₃
Melting Pt: 255 °C (dec.)
Storage Temperature: Ambient
MDL Number: MFCD00064270
CAS Number: 72-19-5
EINECS: 200-774-1
Merck Index: 14,09380

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Specification Test Results

Assay ≥98.5%
Impurity Content Sulphate (SO₄) ≤0.03%
Loss on Drying ≤0.2%
Optical Rotation –26.7 to –29.1° (c=6 in H₂O)
pH (5%, H₂O) 5.0 to 6.5
Identification (FTIR) Conforms
Chloride Content ≤0.05%
Residue on Ignition ≤0.4%
Heavy Metals (Pb) ≤15 ppm
Iron (Fe) ≤30 ppm

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