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Pepstatin Structure


Chemical Properties

Melting point 233 °C (dec.)(lit.)
alpha  D27 -90.3° (c = 0.288 in methanol)
Boiling point 695.91°C (rough estimate)
Density  1.1340 (rough estimate)
refractive index  1.7500 (estimate)
storage temp.  2-8°C
solubility  10% acetic acid in methanol: 1 mg/mL
pka 4.17±0.10(Predicted)
form  White solid
color  Colorless needles
optical activity Optical rotation: -90.0 ± 5° (c = 0.5, MeOH, 20°C).
Water Solubility  It is soluble in 10% (v/v) acetic acid in methanol (9:1 methanol:acetic acid) (1 mg/ml), ethanol (1-2 mg/ml with heat up to 60°C), DMSO (5 mg/ml), methanol (1 mg/ml), and acetic acid. Insoluble in benzene, chloroform, water, 1 M NaOH, and ether.
BRN  2201362
Stability Stable. Incompatible with strong bases, strong acids.
CAS DataBase Reference 26305-03-3(CAS DataBase Reference)
EWG's Food Scores 1


Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P261-P305+P351+P338
Safety Statements  22-24/25
WGK Germany  2
RTECS  SC6155000
HS Code  29241990
Toxicity LD50 in mice, rats, rabbits, dogs (mg/kg): 1090, 875, 820, 450 i.p.; all >2000 orally (Umezawa, 1970)

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