2,5-dimethylbenzothiazole

Modify Date: 2025-08-21 14:21:30

2,5-dimethylbenzothiazole Structure
2,5-dimethylbenzothiazole structure
 Common Name 2,5-dimethylbenzothiazole
CAS Number 95-26-1 Molecular Weight 163.23900
Density 1.176 g/cm3 Boiling Point 146 °C / 10mmHg
Molecular Formula C9H9NS Melting Point 36-40 °C(lit.)
MSDS N/A Flash Point >230 °F

 Names

Name 2,5-dimethylbenzothiazole
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.176 g/cm3
Boiling Point 146 °C / 10mmHg
Melting Point 36-40 °C(lit.)
Molecular Formula C9H9NS
Molecular Weight 163.23900
Flash Point >230 °F
Exact Mass 163.04600
PSA 41.13000
LogP 2.91310
Index of Refraction 1.643

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DL3675000
CHEMICAL NAME :
Benzothiazole, 2,5-dimethyl-
CAS REGISTRY NUMBER :
95-26-1
BEILSTEIN REFERENCE NO. :
0116455
LAST UPDATED :
199701
DATA ITEMS CITED :
4
MOLECULAR FORMULA :
C9-H9-N-S
MOLECULAR WEIGHT :
163.25
WISWESSER LINE NOTATION :
T56 BN DSJ C1 H1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1096,1986
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1096,1986 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
957 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1096,1986

 Safety Information

Hazard Codes Xn:Harmful;
Risk Phrases R22;R36/37/38
Safety Phrases S26-S36
WGK Germany 3
RTECS DL3675000
HS Code 2934999090

 Synthetic Route

2-Iodo-5-methylaniline structure

2-Iodo-5-methyl...

CAS#:13194-69-9

Thioacetamide structure

Thioacetamide

CAS#:62-55-5

~92%

2,5-dimethylbenzothiazole Structure

2,5-dimethylben...

CAS#:95-26-1

Literature: Takagi, Kentaro; Iwachido, Tadashi; Hayama, Naomi Chemistry Letters, 1987 , p. 839 - 840
5-Bromo-2-methylbenzothiazole structure

5-Bromo-2-methy...

CAS#:63837-11-6

Tetramethyltin structure

Tetramethyltin

CAS#:594-27-4

~69%

2,5-dimethylbenzothiazole Structure

2,5-dimethylben...

CAS#:95-26-1

Literature: Bumagin; Nikitina; Beletskaya Russian Journal of Organic Chemistry, 1996 , vol. 32, # 12 p. 1803 - 1811
1,4-Dibromo-2-nitrobenzene structure

1,4-Dibromo-2-n...

CAS#:3460-18-2

~%

2,5-dimethylbenzothiazole Structure

2,5-dimethylben...

CAS#:95-26-1

Literature: Russian Journal of Organic Chemistry, , vol. 32, # 12 p. 1803 - 1811
1,2-bis(4-bromo-2-nitrophenyl)disulfane structure

1,2-bis(4-bromo...

CAS#:76209-05-7

~%

2,5-dimethylbenzothiazole Structure

2,5-dimethylben...

CAS#:95-26-1

Literature: Russian Journal of Organic Chemistry, , vol. 32, # 12 p. 1803 - 1811
thioacetic acid m-toluidide structure

thioacetic acid...

CAS#:35274-16-9

~%

2,5-dimethylbenzothiazole Structure

2,5-dimethylben...

CAS#:95-26-1

Benzothiazole, 2,7-dimethyl- (6CI,9CI) structure

Benzothiazole, ...

CAS#:103440-72-8

Literature: Yakugaku Zasshi, , vol. 76, p. 333 Chem.Abstr., , p. 13879 Journal of the Indian Chemical Society, , vol. 32, p. 135 Zhurnal Obshchei Khimii, , vol. 27, p. 3097,3103, 1305;engl. Ausg. S. 3138, 3143, 3144
Disulfide,bis(4-methyl-2-nitrophenyl) structure

Disulfide,bis(4...

CAS#:35350-31-3

~%

2,5-dimethylbenzothiazole Structure

2,5-dimethylben...

CAS#:95-26-1

Literature: Zhurnal Obshchei Khimii, , vol. 27, p. 3097,3103, 1305;engl. Ausg. S. 3138, 3143, 3144
3'-Methylacetanilide structure

3'-Methylacetanilide

CAS#:537-92-8

~%

2,5-dimethylbenzothiazole Structure

2,5-dimethylben...

CAS#:95-26-1

Literature: Zhurnal Obshchei Khimii, , vol. 27, p. 3097,3103, 1305;engl. Ausg. S. 3138, 3143, 3144
2-amino-4-methylbenzenethiol hydrochloride structure

2-amino-4-methy...

CAS#:4274-37-7

Ethanoic anhydride structure

Ethanoic anhydride

CAS#:108-24-7

~%

2,5-dimethylbenzothiazole Structure

2,5-dimethylben...

CAS#:95-26-1

Literature: Yakugaku Zasshi, , vol. 76, p. 333 Chem.Abstr., , p. 13879

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

EINECS 202-404-4
2,5-dimethyl-1,3-benzothiazole
MFCD00005796
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