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Postion:Product Catalog >Biochemical Engineering>Amino Acids and proteins>L-Cysteine
L-Cysteine
  • L-Cysteine

L-Cysteine NEW

Price Get Latest Price
Package 1kg 25kg 100kg
Min. Order: 1kg
Supply Ability: 10ton
Update Time: 2024-07-21

Product Details

Product Name: L-Cysteine CAS No.: 52-90-4
EC-No.: 200-158-2 Min. Order: 1kg
Purity: 98% Supply Ability: 10ton
Release date: 2024/07/21

English name: L-Cysteine

CAS number: 52-90-4

Molecular formula: C3H7NO2S

Molecular weight: 121.16

EINECS number: 200-158-2

MDL No.:MFCD00064306

attribute

Melting point 240 ° C (dec.) (lit.)

Specific rotation 8.75 o (c=12,2N HCl)

Boiling point 293.9 ± 35.0 ° C (Predicted)

Density 1.197 (estimate)

FEMA3263 | L-CYSTEINE

Refractive index 8.8 ° (C=8,1mol/L HCl)

Storage conditions Store below+30 ° C

Solubility H2O: 25 mg/mL

Acidity coefficient (pKa) 1.92 (at 25 ℃)

Form Solid

Color White

PH value 4.5-5.5 (100g/l, H2O, 20 ℃)

Odor sulfur

Fragrant sulfur

Optical activity:+8 ° to+9 ° (c=5,1 N HCl, 20 ° C)

Water solubility 280 g/L (25 o C)

Sensitivity Air Sensitive

Maximum wavelength (λ max): 260 nm Amax: 1.5

λ: 280 nm Amax: 0.2

JECFA Number1419

Merck14,2781

BRN1721408

Stability Stability, but may be air sensitive. Incompatible with oxidizing agents, bases.

LogP-2.49


Company Profile Introduction

Located in Rencheng District of Jining City in Shandong Province, Jining Xinhe Chemical Co., Ltd. is a pharmaceutical and chemical enterprise specializing in the research and development, production and sales of APIs, intermediates and chemical-related products. In the initial stage of our development, we put time and energy focusing on technology precipitation,research and development, and established long-term cooperation with Dr. Gil Stau (Israel Ecodoemn, Technion Erez Segv). Now, our products are well sold in more than 20 countries such as Israel, Egypt, Syria, Italy, Switzerland, Germany, Hungary, South Korea, Australia and so on. Adhering to the business philosophy of "doing things with integrity, cooperation and win-win", and abiding by the principle of "customer supreme, quality first", we take "improving product quality and customer satisfaction" as our goal and "reducing customer costs, improving product competitiveness" as tenet to keep working and then getting progress. We aim to provide the best service possible to our customers who use our products. Let's work together to create a bright future!

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  • Since: 2015-12-28
  • Address: International park, Jining, Shandong Province
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