All Photos(1)

1.12422

Millipore

N-Acetyl-L-cysteine

for biochemistry

Synonym(s):
N-Acetyl-L-cysteine, 2-Acetamido-3-mercaptopropionic acid
Empirical Formula (Hill Notation):
C5H9NO3S
CAS Number:
Molecular Weight:
163.19
MDL number:
EC Index Number:
210-498-3

Quality Level

vapor pressure

<1 hPa ( 20 °C)

potency

5050 mg/kg LD50, oral (Rat)

pH

1.5-2.5 (20 °C, 100 g/L in H2O)

mp

110.4 °C

solubility

179.5 g/L

density

1.48 g/cm3 at 20 °C

bulk density

730 kg/m3

storage temp.

2-30°C

InChI

1S/C5H9NO3S/c1-3(7)6-4(2-10)5(8)9/h4,10H,2H2,1H3,(H,6,7)(H,8,9)

InChI key

PWKSKIMOESPYIA-UHFFFAOYSA-N

Analysis Note

Assay (iodometric): ≥ 99.0 %
Identity (IR-spectrum): passes test
Appearance: white to almost white, crystalline powder or colorless crystals
Appearance of solution (1 mol/l, water): clear and colorless
Spec. rotation (α 20/D, 50 g/l, buffer pH 7.0): +21.0 to +27.0
Heavy metals (as Pb): ≤ 0.001 %
NH₄ (Ammonium): ≤ 0.01 %
L-cysteine (HPLC): ≤ 0.02 %
Other ninhydrine positive substances: ≤ 0.1 %

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

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