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Merck 102839 L-Cysteine hydrochloride monohydrate for biochemistry 10 kg

Merck 102839 L-Cysteine hydrochloride monohydrate for biochemistry 10 kg

Merck 102839 L-Cysteine hydrochloride monohydrate for biochemistry 10 kg

Kategori

Diğer Analitik Kimyasallar , Moleküler Biyoloji ve Biyokimya Ürünleri

Marka

MERCK

Stok Kodu

LB.M.1028399010

Kısa Bilgi

Synonym(s): Cys, L-Cysteinium Chloride Monohydrate, L-Cysteine Hydrochloride, Monohydrate Linear Formula: HSCH2CH(NH2)COOH · HCl · H2O CAS Number: 7048-04-6 Molecular Weight: 175.63 Beilstein: 5158059 MDL number: MFCD00065606 EC Index Number: 200-157-7

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Ön Siparişli Ürün

Merck 102839 L-Cysteine hydrochloride monohydrate for biochemistry 10 kg
Catalogue Number	102839
Synonyms	Cys, L-Cysteinium Chloride Monohydrate, L-Cysteine Hydrochloride, Monohydrate

Merck 102839 L-Cysteine Hydrochloride Monohydrate For Biochemistry 100 gr

Product Information
CAS number	7048-04-6
EC number	200-157-7
Hill Formula	C₃H₈ClNO₂S * H₂O
Molar Mass	175.64 g/mol
HS Code	2930 90 16
Structure formula Image
Quality Level	MQ100

Physicochemical Information
Density	1.54 g/cm3
Melting Point	64 °C
pH value	0.8 - 1.2 (100 g/l, H₂O, 20 °C)
Vapor pressure	<0.1 hPa (20 °C)
Bulk density	780 kg/m3
Solubility	650 g/l

Safety Information according to GHS
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
RTECS	HA2285000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly 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 below +30 °C.

Specifications
Assay (alkalimetric, calculated on dried substance)	98.5 - 101.0 %
Identity (IR-spectrum)	passes test
Identity (wet chemistry)	passes test
Appearance	white or almost white, crystalline powder or colorless crystals
Appearance of solution (25 g/l, water)	clear and not more intense in color than reference solution BY6
Spec. rotation (α 20/D, 80 g/l, hydrochloric acid 250 g/l, calc. on dried substance)	+5.5 to +7.0
Sulfate (SO₄)	≤ 200 ppm
Heavy metals (as Pb)	≤ 10 ppm
Fe (Iron)	≤ 10 ppm
Ninhydrin-positive substances (LC) (impurity A (570 nm))	≤ 0.5 %
Ninhydrin-positive substances (LC) (any ninhydrin-positive impurity)	≤ 0.2 %
Ninhydrin-positive substances (LC) (ammonium (570 nm))	≤ 0.02 %
Ninhydrin-positive substances (LC) (total impurities)	≤ 1.0 %
Sulfated ash (600 °C)	≤ 0.1 %
Loss on drying (Vacuum < 2,0 kPa, P2O5, 20 h)	8.5 - 12.0 %
Residual solvents (ICH Q3C)	excluded by manufacturing process
Sulfated ash (600 °C)	≤ 0.1 %
Loss on drying (Vacuum < 0.7 kPa, P₂O₅, 24 h)	8.0 - 12.0 %
Bacterial endotoxins	≤ 6.0 I.U./g

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