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N-acetyl-S-(2-chloro-4-nitrophenyl)-L-cysteine is a chemical compound with the molecular formula C9H8ClN2O4S. It is a derivative of the amino acid L-cysteine, where the thiol group (-SH) is replaced by a 2-chloro-4-nitrophenyl group, and the amino group is acetylated. N-acetyl-S-(2-chloro-4-nitrophenyl)-L-cysteine is often used as a model for studying the reactivity of cysteine residues in proteins, particularly in the context of chemical modifications and protein-protein interactions. It is also employed in the investigation of enzyme mechanisms and as a tool in the development of new drugs targeting cysteine-dependent processes. The compound's structure and reactivity make it a valuable probe in biochemical research, allowing scientists to understand and manipulate the behavior of proteins containing cysteine residues.

305-40-8

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Basic information
1. Product Name: N-acetyl-S-(2-chloro-4-nitrophenyl)-L-cysteine
2. Synonyms: L-Cysteine, N-acetyl-S-(2-chloro-4-nitrophenyl)-
3. CAS NO:305-40-8
4. Molecular Formula: C₁₁H₁₁ClN₂O₅S
5. Molecular Weight: 318.7334
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 577.3°C at 760 mmHg
3. Flash Point: 303°C
4. Appearance: N/A
5. Density: 1.52g/cm³
6. Vapor Pressure: 3.6E-14mmHg at 25°C
7. Refractive Index: 1.628
8. Storage Temp.: N/A
9. Solubility: N/A
10. PKA: 3.15±0.10(Predicted)
11. CAS DataBase Reference: N-acetyl-S-(2-chloro-4-nitrophenyl)-L-cysteine(CAS DataBase Reference)
12. NIST Chemistry Reference: N-acetyl-S-(2-chloro-4-nitrophenyl)-L-cysteine(305-40-8)
13. EPA Substance Registry System: N-acetyl-S-(2-chloro-4-nitrophenyl)-L-cysteine(305-40-8)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 305-40-8(Hazardous Substances Data)

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305-40-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 305-40-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,0 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 305-40:
(5*3)+(4*0)+(3*5)+(2*4)+(1*0)=38
38 % 10 = 8
So 305-40-8 is a valid CAS Registry Number.

305-40-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name	(2R)-2-acetamido-3-(2-chloro-4-nitrophenyl)sulfanylpropanoic acid

1.2 Other means of identification

Product number	-
Other names	-

1.3 Recommended use of the chemical and restrictions on use

Identified uses	For industry use only.
Uses advised against	no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number	-
Service hours	Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:305-40-8 SDS

305-40-8Upstream product

52-90-4 L-Cysteine

305-40-8Downstream Products

305-40-8Relevant academic research and scientific papers

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