L-Cysteine, 99%, non-animal origin CAS 52-90-4

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CAS: 52-90-4

MF: C₃H₇NO₂S

MW: 121.16

Product Info
Product Spec
Safety Info
Application

Product Description

Cysteine is a nonessential amino acid. It contains a thiol group that participates in the formation of disulphide bonds that regulate the secondary and tertiary structure of proteins. It is also used to supplement cell culture media.

Product Categories	Amino Acids, Biochemicals, Reagents for Cell Culture
CAS RN	52-90-4
Alternative CAS RN	345909-32-2 (·xH2O)
EC Number	200-158-2
MDL Number	MFCD00064306
Storage Temperature	+20°C
Shipping Temperature	Ambient
Harmonised Tariff Code	2930901300

Physical Description	White to almost white powder or crystals
Solubility (2.5% in water)	Clear, colourless solution
Solubility (10% in 2M HCl)	Clear, colourless solution
pH (2.5% in water)	4.5 - 5.5
Specific Optical Rotation ([α]20/D)	+8.3 - +9.5 ° (c=8, 1M HCl)
Chloride (Cl)	≤ 0.05%
Sulphate (SO4)	≤ 0.03%
Ammonium (NH4)	≤ 0.02%
Iron (Fe)	≤ 10ppm
Heavy Metals (as Pb)	≤ 10ppm
Residue on Ignition	≤ 0.1%
Loss on Drying	≤ 0.5% (105°C, 3h)
Assay (Titration)	98.5 - 101.0 %
Origin	Vegetal fermentation
Specification Version	1.0

Pictograms
Signal word	Warning
Hazard statements	H302: Harmful if swallowed
Precautionary statements	P261: Avoid breathing dust/fume/gas/mist/vapors/spray. P280: Wear protective gloves/protective clothing/eye protection/face protection. P301+P312: IF SWALLOWED: call a POISON CENTER/doctor/... IF you feel unwell.
Supplementary EUH statements
UN Number	-
WGK	WGK 1
SDS Version	3.0