L-Cysteine Free Base, AJI92


Weight: 200g
Price:
Sale price€43,03

Description

Product Name: L-Cysteine, Free Base
Formula: C3H7NO2S
Molecular Weight: 121.16
Melting Point: 226-234 C (Dec)
Solubility: Soluble in Water
Appearance: White to off-white powder
Odor: Odorless

Specification:

Specific rotation [α]D20::

+8.3° to + 9.5°

Assay:

99.0% to 101.0%

Loss on drying:

0.50% max.

Chloride [as Cl-]:

0.04% max.

Ammonium [NH4+]:

0.02% max.

Sulfate [SO42-]:

0.03% max.

Iron [Fe]:

10ppm max.

Heavy metals [Pb]:

10ppm max.

Arsenic [As2O3]:

1ppm max.

PH:

4.5~5.5

Residue on ignition [sulfated]:

0.10% max.

Other amino acids:

Not detectable (Chromatographically)

State of solution:

Transmittance:

Clear and colorless

95.0% min.

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