L-Cysteine hydrochloride monohydrate CAS 7048-04-6

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CAS: 7048-04-6

MF: C₃H₇NO₂S · HCl · H₂O

MW: 175.64

Product Categories	Amino Acids, Biochemicals, Raw Materials (IVD)
CAS RN	7048-04-6
Alternative CAS RN	345909-32-2 (·xH2O)
EC Number	200-157-7
MDL Number	MFCD00065606
Storage Temperature	+20°C
Shipping Temperature	Ambient
Harmonised Tariff Code	2930901600

Physical Description	White powder or colourless crystals
Identification (IR)	To conform to standard
Specific Optical Rotation ([α]20/D)	+5.5 - +7.0 ° (c=8, 1M HCl)
pH (5% in water)	1.5 - 2.0
Chloride (Cl)	19.89 - 20.29 %
Ammonium (NH4)	≤ 0.02%
Sulphate (SO4)	≤ 0.02%
Iron (Fe)	≤ 10ppm
Other Amino Acids	Not detectable
Loss on Drying	8.5 - 12.0 %
Residue on Ignition	≤ 0.1%
Lead (Pb)	≤ 3ppm
Arsenic (As)	≤ 1ppm
Mercury (Hg)	≤ 0.1ppm
Cadmium (Cd)	≤ 1ppm
Assay	99.0 - 100.5 %
Specification Version	1.1

Pictograms
Signal word	Warning
Hazard statements	H315: Causes skin irritation H319: Causes serious eye irritation H335: May cause respiratory irritation H336: May cause drowsiness or dizziness
Precautionary statements	P261: Avoid breathing dust/fume/gas/mist/vapors/spray. P280: Wear protective gloves/protective clothing/eye protection/face protection. P302+P352: IF ON SKIN: wash with plenty of water. P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do - continue rinsing.
Supplementary EUH statements
UN Number	-
WGK	WGK 1
SDS Version	3.0