Pepsin CAS 9001-75-6

Pepsin Basic information

Overview Biological location and functions Factor affecting the activity of pepsin Applications References

CAS:

9001-75-6

MF:

n.a.

MW:

0

EINECS:

232-629-3

Mol File:

Mol File

Pepsin Chemical Properties

alpha

D26 -64.5° (water pH 4.6)

density

1.287 g/cm3

bulk density

380-420kg/m3

storage temp.

-20°C

solubility

10 mM HCl: soluble1.0mg/mL, clear to faintly turbid, colorless

form

powder

color

slightly beige

PH

4.0-5.0 (20°C, 10g/L in H2O)

Odor

Odorless

biological source

Porcine gastric mucosa

Water Solubility

Soluble in water and dilute aqueous buffers

Sensitive

Hygroscopic

Merck

137,225

Specific Activity

400-800units/mg protein

Stability:

Stable. Incompatible with strong bases, alkalies, metallic salts, alcohols.

Cosmetics Ingredients Functions

SKIN CONDITIONING

HAIR CONDITIONING

CAS DataBase Reference

9001-75-6

EPA Substance Registry System

Pepsin A (9001-75-6)

Test Items

Specifications

Results

Appearance

A white or slightly yellow powder

Slightly yellow
powder

Identification

Conforms

Conforms

Solubility

Soluble in water.insoluble in alcohol and ether

Pass

Sulphated Ash

<5.0%

3.10%

Protease activity

1: 10000u/mg

1:10200u/mg

Particle Size

80 meshs

Conforms

Loss on drying

<5.0%

4.20%

Heavy metals

<20 ppm

Conforms

Total bacte ria
count

<10000 piece/g

Conforms

Yeast and Moulds

<100 piece/g

Conforms

E.Coli

Negative

Negative

Salmonella

Negative

Negative

PS.Aeruginosa

Negative

Negative

S.Aureus

Negative

Negative

COMMENT

This product conforms to the Specification

Negative