L-Threonine, USP28/FCCIV


Weight: 200g
Price:
Sale priceR$ 80,55

Description

Product Name: L-Threonine
CAS Number: 72-19-5
Chemical Formula: C4H9NO3
Molecular Weight: 119.1192
Melting Point: 270 ºC

Other name: 2-Amino-3-hydroxybutanoic acid

Specification:

Appearance:

White crystalline powder.

Assay:

99.0% to 100.5%

Specific rotation [α]D20:

-27.6º to –29.0º

Loss on drying:

0.20% Max.

Chloride [Cl]:

0.02% max

Ammonium [NH4]:

0.02% max

Sulfate [SO4]:

0.02% max

Iron[Fe]:

10ppm max

Heavy metals [Pb]:

10ppm max

Arsenic [AS2O3]:

1ppm max

Other amino acids:

Not detected

Residue on ignition (sulfated):

0.1% max

State of solution (transmittance):

Clear and colorless 98.0% min

PH:

5.2 to 6.2

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