Acetyl-L-Cysteine for Biochemistry

ürün Kodu : 112422.0100

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Ürün Grubu : Merck Kimyasalları

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Description
Catalogue Number 112422
Synonyms 2-Acetamido-3-mercaptopropionic acid
Product Information
CAS number 616-91-1
EC number 210-498-3
Hill Formula C₅H₉NO₃S
Molar Mass 163.20 g/mol
HS Code 2930 90 16
Structure formula Image Structure formula Image
Quality Level MQ100
Applications
Application N-Acetyl-L-cysteine for biochemistry. CAS 616-91-1, pH 1.5 - 2.5 (100 g/l, H₂O, 20 °C).
Physicochemical Information
Density 1.48 g/cm3 (20 °C)
Melting Point 110.4 °C
pH value 1.5 - 2.5 (100 g/l, H₂O, 20 °C)
Vapor pressure <0.1 hPa (20 °C)
Bulk density 730 kg/m3
Solubility 179.5 g/l
Toxicological Information
LD 50 oral LD50 Rat 5050 mg/kg
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Statement(s) H319: Causes serious eye irritation.
Precautionary Statement(s) P264: Wash skin thoroughly after handling.
P280: Wear eye protection/ face protection.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337 + P313: If eye irritation persists: Get medical advice/ attention.
Signal Word Warning
Storage class 10 - 13 Other liquids and solids
WGK WGK 2 obviously hazardous to water
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Storage and Shipping Information
Storage Store at +5°C to +30°C.
Specifications
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 %

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