l-cysteine 99% for biochemistry

Six white plastic bottles with red caps of varying sizes are lined up in ascending order against a plain gray background.

Three chemical solution bottles with red caps are arranged side by side against a gray background. The labels read "Methyl Orange Indicator Solution" and "Fehling's Solution No. A.

Three white chemical bottles with red caps, labeled "Chemnovyo," arranged in order of size against a plain gray background.

Four plastic bottles of chemical reagents with red caps, labeled for different substances, are arranged in size order against a gray background.

Five black plastic chemical bottles of various sizes are arranged on a gray surface against a dark gray background. Labels are visible but not fully legible.

Six brown pharmaceutical containers of varying sizes with white and red ChemBooz labels are arranged in a row against a plain gray background.

Three black plastic bottles of nitric acid with white hazard labels are arranged in a row against a grey background.

Two brown glass bottles with red caps, labeled as chemical containers, are placed side by side on a gray surface with a dark background.

Two white plastic chemical containers with black lids, labeled "Chemnovato." The left contains Magnesium Sulphate, and the right contains Acetyl Salicylic Acid, both on a gray background.

Three chemical bottles labeled Toluene, Iso-Propyl Alcohol, and Chloroform are arranged side by side on a gray background.

Six brown glass bottles of varying sizes with white labels and black or white caps, containing Trichloroacetic Acid 99% AR from Chemoxy, are arranged in a row on a gray background.

Two brown glass bottles labeled "Chloroform 99.8% for HPLC" with hazard symbols, placed side by side on a neutral gray background.

Three dark brown bottles with red caps and Chemnovatic labels contain hydrochloric acid, nitric acid, and sulfuric acid, arranged side by side on a gray background.

Specification

Description

CAS	52-90-4
Molecular Formula	C3H7NO2S
Molecular Weight	121.16
Shelf Life	60 Months

Physical Properties
Physical State at 20 °C	Solid	Colour	Colorless crystalline
Melting Point/ Freezing Point [°C]	220 °C	Solubility in Water [% weight]	Appreciable (> 10%)

Specifications
Appearance	Colorless crystalline powder	Assay	Min. 99.0%
Specific Optical Rotation ( [?]20/d)	+8.0° to +9.0°	Uv Absorbance	Max. 0.5
Loss On Dryig (At 105°C; 4 Hrs)	Max. 0.3%	Chloride (Cl)	Max. 0.002%
Sulphate (So4)	Max. 0.01%	Heavy Metal (As Pb)	Max. 0.001%
Ammonium (Nh4)	Max. 0.01%	Foreign Amino Acids	Max. 0.5%
Other Ninhydrin Positive Substances (As Glycine)	Max. 0.1%

Dangerous Goods Information
UN Number	–	DG Class	–

Safety Information & Hazard Symbols
Symbol	GHS07
Signal Word	Warning

l-cysteine 99% for biochemistry

SKU C00923-00005-HS Category Chemicals