Methionine, N-[(4-methylphenyl)sulfonyl]-

Modify Date: 2025-08-25 16:13:13

Methionine, N-[(4-methylphenyl)sulfonyl]- Structure
Methionine, N-[(4-methylphenyl)sulfonyl]- structure
Common Name Methionine, N-[(4-methylphenyl)sulfonyl]-
CAS Number 4703-33-7 Molecular Weight 303.39800
Density N/A Boiling Point 510.7ºC at 760mmHg
Molecular Formula C12H17NO4S2 Melting Point 105-108ºC
MSDS N/A Flash Point 262.7ºC

 Names

Name 2-[(4-methylphenyl)sulfonylamino]-4-methylsulfanylbutanoate
Synonym More Synonyms

 Chemical & Physical Properties

Boiling Point 510.7ºC at 760mmHg
Melting Point 105-108ºC
Molecular Formula C12H17NO4S2
Molecular Weight 303.39800
Flash Point 262.7ºC
Exact Mass 303.06000
PSA 117.15000
LogP 2.95130

 MSDS

Name: N-(p-Toluenesulfonyl)-DL-methionine 98% Material Safety Data Sheet
Synonym:
CAS: 4703-33-7
Section 1 - Chemical Product MSDS Name:N-(p-Toluenesulfonyl)-DL-methionine 98% Material Safety Data Sheet
Synonym:

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
4703-33-7 N-(p-Toluenesulfonyl)-DL-methionine 98% unlisted
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
Inhalation:
May cause respiratory tract irritation.
Chronic:
Not available.

Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container.

Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 4703-33-7: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Crystalline powder
Color: white
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 104 - 106 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: insoluble
Specific Gravity/Density:
Molecular Formula:
Molecular Weight: 303.39

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Will not occur.

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 4703-33-7 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
N-(p-Toluenesulfonyl)-DL-methionine - Not listed by ACGIH, IARC, or NTP.

Section 12 - ECOLOGICAL INFORMATION


Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 4703-33-7: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 4703-33-7 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 4703-33-7 is not listed on the TSCA inventory.
It is for research and development use only.


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

Hazard Codes Xi
Risk Phrases R36/37/38
Safety Phrases 24/25-37/39-26

 Synonyms

N-TOSYL-DL-METHIONINE
N-Tosyl-DL-methionin
AURORA 584
MFCD00425359
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