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Home> Encyclopedia > Hot Product Listed 4   > 4,5-Dimethylthiazole
3581-91-7 structure

4,5-Dimethylthiazole

Iupac Name:4,5-dimethyl-1,3-thiazole
CAS No.:3581-91-7
EINECS(EC#): 222-703-3
Molecular Weight:113.178
Molecular Formula:C5H7NS (isomer)
Properties
Appearance
Colorless to light yellow liquid
Density
1.07
Melting Point
83-84oC
Boiling Point
158℃ (742 torr)
Refractive Index
1.52-1.522
Flash Point
51℃
Solubility
Slightly soluble
Other physical and chemical properties
Solid
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
HS Code
2934100090
Storage temp
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
Safety and Handling
Hazard Codes
Xn
Risk Statements
R10;R22;R36/37/38
Safety Statements
S16;S26;S37/39
HazardClass
3
Safety

Safety Information of 4,5-Dimethylthiazole (CAS NO.3581-91-7):
Hazard Codes:?HarmfulXn,IrritantXi,FlammableF
Risk Statements: 10-22-37/38-41-36/37/38?
R10:Flammable.?
R22:Harmful if swallowed.?
R37/38:Irritating to respiratory system and skin.?
R36/37/38:Irritating to eyes, respiratory system and skin.?
R41:Risk of serious damage to the eyes.
Safety Statements: 16-26-39-37/39-36/37/39?
S16:Keep away from sources of ignition.?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S37/39:Wear suitable gloves and eye/face protection.?
S39:Wear eye / face protection.?
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
RIDADR: UN 1993 3/PG 3
WGK Germany: 3
RTECS: XJ4380000
HazardClass: 3
PackingGroup: III

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 oral 960mg/kg (960mg/kg) SENSE ORGANS AND SPECIAL SENSES: CHROMODACYRORREA: EYE

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
Acute Toxicity Data. Journal of the American College of Toxicology, Part B. Vol. 1, Pg. 95, 1990.

PackingGroup
III
Transport
UN 1993 3/PG 3
Specification

?4,5-Dimethylthiazole (CAS NO.3581-91-7), its Synonyms are FEMA No. 3274 ; Thiazole, 4,5-dimethyl- ; 4,5-Dimethyl-1,3-thiazole .

MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Acute toxicity - Oral, Category 4

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Warning

Hazard statement(s)

H302 Harmful if swallowed

Precautionary statement(s)
Prevention

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

Response

P301+P312 IF SWALLOWED: Call a POISON CENTER/doctor/\u2026if you feel unwell.

P330 Rinse mouth.

Storage

none

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

Precursor and Product
Computational chemical data
  • Molecular Weight:113.178g/mol
  • Molecular Formula:C5H7NS
  • Compound Is Canonicalized:True
  • Exact Mass:113.03
  • Monoisotopic Mass:113.03
  • Complexity:65.1
  • Rotatable Bond Count:0
  • Hydrogen Bond Donor Count:0
  • Hydrogen Bond Acceptor Count:2
  • Topological Polar Surface Area:41.1A^2
  • Heavy Atom Count:7
  • Defined Atom Stereocenter Count:0
  • Undefined Atom Stereocenter Count:0
  • Defined Bond Stereocenter Count:0
  • Undefined Bond Stereocenter Count:0
  • Isotope Atom Count:0
  • Covalently-Bonded Unit Count:1
  • CACTVS Substructure Key Fingerprint: AAADcYBiAABAAAAAAAAAAAAAAAAAAWAAAAAAAAAAAAAAAAABgAAAHAQAAAAACAiBVgSGgRIIEAik AQRhRAAA8KBRCDgAWBQ4QAAAAABgAAAEAAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AA==
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