Merck 102837 L-Cystine For Biochemistry 25 gr

Category

Analitik Kimyasallar

Brand

MERCK

Stock Code

LB.M.102837.0025

Teklif Sepetine Ekle

Stok Sorunuz

MERCK 102837 L-Cystine for Biochemistry 25 Gr
Catalogue Number	102837
Synonyms	Cys

Product Information
CAS number	56-89-3
EC number	200-296-3
Hill Formula	C₆H₁₂N₂O₄S₂
Molar Mass	240.30 g/mol
HS Code	2930 90 13
Structure formula Image

Applications
Application	L-Cystine for biochemistry. CAS 56-89-3, molar mass 240.30 g/mol.

Physicochemical Information
Density	1.677 g/cm3 (20 °C)
Melting Point	261 - 262 °C (decomposition)
Bulk density	300 kg/m3
Solubility	0.19 g/l insoluble

Safety Information according to GHS
RTECS	HA2690000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly water endangering

Storage and Shipping Information
Storage	Store at +5 °C to +30 °C.

Specifications
Assay (bromatometric, calculated on dried substance)	≥ 99.0 %
Identity (IR-spectrum)	passes test
Appearance	white to almost white, fine-crystalline powder
Appearance of solution (0.2 mol/l, hydrochloric acid 1 mol/l)	clear and colorless
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance)	-220.0 to - 225.0
Chloride (Cl)	≤ 0.02 %
Sulfate (SO₄)	≤ 0.05 %
Heavy metals (as Pb)	≤ 0.001 %
As (Arsenic)	≤ 0.0005 %
Ca (Calcium)	≤ 0.001 %
Co (Cobalt)	≤ 0.0005 %
Fe (Iron)	≤ 0.0005 %
K (Potassium)	≤ 0.0005 %
Mg (Magnesium)	≤ 0.0005 %
Na (Sodium)	≤ 0.005 %
Zn (Zinc)	≤ 0.0005 %
NH₄ (Ammonium)	≤ 0.01 %
Foreign amino acids	≤ 0.3 %
Other ninhydrine positive substances	≤ 0.3 %
Loss on drying (105 °C; 3 h)	≤ 0.3 %

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Merck 102837 L-Cystine For Biochemistry 25 gr

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