Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4,5-Dimethylthiazole
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 4,5-Dimethylthiazole
Price: ￥138.0/5g ￥488.0/25g
Purity: 98.0%
Stocking Period: 2 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4,5-Dimethylthiazole
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: 4,5-Dimethylthiazole
Price: ￥Inquiry/25kg
Purity: 99.0%
Stocking Period: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

3581-91-7

3581-91-7 structure

3581-91-7 structure

Name: 4,5-Dimethylthiazole
Chemical Name: 4,5-dimethyl-1,3-thiazole
CAS Number: 3581-91-7
Molecular Formula: C₅H₇NS
Molecular Weight: 113.181
Catalog: Flavors and spices Synthetic spice Halogen-containing, sulfur-containing, nitrogen-containing compounds Sulfur-containing nitrogen compounds
Create Date: 2018-07-06 18:21:08
Modify Date: 2025-08-20 15:22:15

Name	4,5-dimethyl-1,3-thiazole
Synonyms	EINECS 222-703-3 FEMA No. 3274 4,5-Dimethyl-thiazol 4-27-00-00986 (Beilstein Handbook Reference) MFCD00005336 4,5-Dimethyl-1,3-thiazole Thiazole,4,5-dimethyl 4,5-Dimethylthiazole Thiazole, 4,5-dimethyl-

Density	1.1±0.1 g/cm3
Boiling Point	158.1±9.0 °C at 760 mmHg
Melting Point	83-84ºC
Molecular Formula	C₅H₇NS
Molecular Weight	113.181
Flash Point	51.1±0.0 °C
Exact Mass	113.029922
PSA	41.13000
LogP	1.36
Vapour Pressure	3.5±0.3 mmHg at 25°C
Index of Refraction	1.531

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XJ4380000

CHEMICAL NAME :: Thiazole, 4,5-dimethyl-

CAS REGISTRY NUMBER :: 3581-91-7

BEILSTEIN REFERENCE NO. :: 0105694

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C5-H7-N-S

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 960 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - chromodacryorrhea Lungs, Thorax, or Respiration - dyspnea Nutritional and Gross Metabolic - body temperature decrease

REFERENCE :: ATDAEI Acute Toxicity Data. Journal of the American College of Toxicology, Part B. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1- 1990- Volume(issue)/page/year: 1,95,1990

Symbol	GHS02, GHS05, GHS07
Signal Word	Danger
Hazard Statements	H226-H302-H315-H318-H335
Precautionary Statements	P261-P280-P305 + P351 + P338
Hazard Codes	Xn:Harmful
Risk Phrases	R10;R22;R36/37/38
Safety Phrases	S16-S26-S39-S37/39
RIDADR	UN 1993 3/PG 3
WGK Germany	3
RTECS	XJ4380000
Packaging Group	III
Hazard Class	3
HS Code	2934100090

Precursor 9
77287-34-4 814-75-5 3332-09-0 2289-75-0
5351-51-9 20662-83-3 21709-64-8 115-08-2
4091-39-8
DownStream 10
141305-55-7 141305-54-6 185145-59-9 82294-70-0
79312-41-7 7531-76-2 10014-52-5 16206-89-6
29947-24-8 74531-15-0

HS Code	2934100090
Summary	2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

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