D-(-)-Penicillamine 99%, meetSpec_Ph.Eur.,USP

: H-D-Pen-OH, (S)-2-Amino-3-mercapto-3-methylbutanoic acid, Penicillamine

:52-67-5

:C₅H₁₁NO₂S

:MFCD00064302

:149.2 g/mol

:212 °C (dec.)

:200-148-8

:GHS08

:Refrigerator

Appearance:
White to almost white Powder
Infrared spectrum:
Conforms
Assay:
97.0 to 102.0 % (USP)
Loss on drying:
≤0.5 % (60°C, 3 h) (vacuum)
UV:
at 268 nm A: ≤0.07 (0.1 g in 50 ml water)
Appearance of solution:
Passes test
Identification A:
Passes test
Identification B:
Passes test
Identification C:
Passes test
Identification D:
Passes test
Residue after ignition:
≤0.1 %
pH:
4.5 to 5.5 (1 g in 100 ml water)
Specific optical rotation:
-60.5° to -65.0° (20°C, 589 nm) (0.5g in 10 ml 1N NaOH)
Titration with HClO4:
98.0 to 101.0 % (EP)
Mercury (Hg):
≤0.001 %
Impurity:
≤1 % (Penicillamine disulfide)