dl-methioninol

Modify Date: 2026-07-15 07:26:19

dl-methioninol Structure
dl-methioninol structure
Common Name dl-methioninol
CAS Number 502-83-0 Molecular Weight 135.228
Density 1.1±0.1 g/cm3 Boiling Point 270.2±30.0 °C at 760 mmHg
Molecular Formula C5H13NOS Melting Point 31-36 °C
MSDS Chinese Flash Point 117.2±24.6 °C

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name dl-methioninol
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.1±0.1 g/cm3
Boiling Point 270.2±30.0 °C at 760 mmHg
Melting Point 31-36 °C
Molecular Formula C5H13NOS
Molecular Weight 135.228
Flash Point 117.2±24.6 °C
Exact Mass 135.071777
PSA 71.55000
LogP -0.11
Appearance of Characters viscous liquid
Vapour Pressure 0.0±1.2 mmHg at 25°C
Index of Refraction 1.516
InChIKey MIQJGZAEWQQAPN-UHFFFAOYSA-N
SMILES CSCCC(N)CO
Storage condition Refrigerator (+4°C)

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

Name: DL-Methioninol Material Safety Data Sheet
Synonym: 2-Amino-4-(methylthio)-1-butano
CAS: 502-83-0
Section 1 - Chemical Product MSDS Name:DL-Methioninol Material Safety Data Sheet
Synonym:2-Amino-4-(methylthio)-1-butano

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
502-83-0 DL-Methioninol unlisted
Hazard Symbols: XI
Risk Phrases: 36/37/38

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Irritating to eyes, respiratory system and skin.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. May be harmful if absorbed through the skin.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
Causes respiratory tract irritation. May be harmful if inhaled.
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:
Treat symptomatically and supportively.

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 water spray, dry chemical, carbon dioxide, or chemical foam.

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 tightly closed container. Store in a dry area. Keep refrigerated. (Store below 4C/39F.)

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 502-83-0: 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: Solid
Color: Not available.
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 31 - 36 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: Soluble.
Specific Gravity/Density:
Molecular Formula: C5H13NOS
Molecular Weight: 135.23

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.
Hazardous Polymerization: Not available.

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 502-83-0 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
DL-Methioninol - 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: XI
Risk Phrases:
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 37/39 Wear suitable gloves and eye/face
protection.
WGK (Water Danger/Protection)
CAS# 502-83-0: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 502-83-0 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 502-83-0 is not listed on the TSCA inventory.
It is for research and development use only.


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes Xi
Risk Phrases 36/37/38
Safety Phrases S37/39-S26
WGK Germany 3

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  5

DownStream  2

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

2-Amino-4-(methylthio)-1-butanol
D-methioninol
MFCD00068312
DL-METHIONOL
2-amino-4-(methylthio)butan-1-ol
2-amino-4-(methylsulfanyl)butan-1-ol
2-azanyl-4-methylsulfanyl-butan-1-ol
methioninol
DL-Methioninol
DL-Methioninol2-Amino-4-(methylthio)-1-butanol
4-METHYLMERCAPTO-2-AMINO-1-BUTANOL
L-2-amino-4-methylsulfanylbutanol
2-amino-4-methylthio-1-butanol
2-Amino-4-(methylsulfanyl)-1-butanol
(+-)-2-Amino-4-methylmercapto-butan-1-ol
H-DL-MET-OL
(+-)-2-amino-4-methylsulfanyl-butan-1-ol

 dl-methioninol | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the physical appearance of dl-methioninol?
A: dl-methioninol appears as viscous liquid.
Q: What is the LogP of dl-methioninol?
A: LogP of dl-methioninol is -0.11.
Q: What is the melting point of dl-methioninol?
A: Melting point of dl-methioninol is 31-36 °C.
Q: What is the molecular weight of dl-methioninol?
A: Molecular weight of dl-methioninol is 135.228.
Q: What is the safety information for dl-methioninol?
A: Safety information for dl-methioninol: S37/39-S26.
Q: What is the English name of dl-methioninol?
A: The English name of dl-methioninol is dl-methioninol.
Q: What are the storage conditions for dl-methioninol?
A: Storage conditions for dl-methioninol: Refrigerator (+4°C).
Q: What are the downstream products of dl-methioninol?
A: Related downstream products(CAS) of dl-methioninol: 59-51-8;92148-47-5.
Q: What is the polar surface area (PSA) of dl-methioninol?
A: Polar surface area (PSA) of dl-methioninol is 71.55000.
Q: What is the InChIKey of dl-methioninol?
A: InChIKey of dl-methioninol is MIQJGZAEWQQAPN-UHFFFAOYSA-N.

 dl-methioninolfactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
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