2-Methylbenzoselenazole

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Names

[ CAS No. ]:
2818-88-4

[ Name ]:
2-Methylbenzoselenazole

[Synonym ]:
EINECS 220-577-4
2-methylbenzo-1,3-selenazole
2-Methyl-benzoselenicazole
2-Methylbenzoselenazol
2-Methylbenzselenazol [Czech]
methyl-2 benzoselenazole
MFCD00005557
2-Methylbenzselenazole
BENZOSELENAZOLE,2-METHYL
2-Methylbenzoselenazole

Chemical & Physical Properties

[ Boiling Point ]:
140 °C51 mm Hg(lit.)

[ Melting Point ]:
28.5-30 °C(lit.)

[ Molecular Formula ]:
C8H7NSe

[ Molecular Weight ]:
196.10800

[ Flash Point ]:
>230 °F

[ Exact Mass ]:
196.97400

[ PSA ]:
12.89000

[ LogP ]:
1.60020

[ Vapour Pressure ]:
0.0901mmHg at 25°C

[ Index of Refraction ]:
n20/D 1.652(lit.)

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DK7700000
CHEMICAL NAME :
Benzoselenazole, 2-methyl-
CAS REGISTRY NUMBER :
2818-88-4
BEILSTEIN REFERENCE NO. :
0112836
LAST UPDATED :
199712
DATA ITEMS CITED :
27
MOLECULAR FORMULA :
C8-H7-N-Se
MOLECULAR WEIGHT :
196.12
WISWESSER LINE NOTATION :
T56 BN D-SE-J C1

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: -,1283,1986
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: -,1283,1986 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
471 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: -,1283,1986
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
140 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#05958 *** REVIEWS *** ACGIH TLV-TWA 0.2 mg(Se)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.2 mg(Se)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,224,1971 OSHA PEL (Gen Indu):8H TWA 0.2 mg(Se)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 0.2 mg(Se)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 0.2 mg(Se)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 0.2 mg(Se)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-AUSTRALIA:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-BELGIUM:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-DENMARK:TWA 0.1 mg(Se)/m3 JAN 1993 OEL-FINLAND:TWA 0.1 mg(Se)/m3;STEL 0.3 mg(Se)/m3 JAN 1993 OEL-GERMANY:TWA 0.1 mg(Se)/m3 JAN 1993 OEL-HUNGARY:STEL 0.1 mg(Se)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-POLAND:TWA 0.1 mg(Se)/m3 JAN 1993 OEL-SWEDEN:TWA 0.1 mg(Se)/m3 JAN 1993 OEL-SWITZERLAND:TWA 0.1 mg(Se)/m3 JAN 1993 OEL-TURKEY:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.1 mg(Se)/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV

Safety Information

[ Hazard Codes ]:
T: Toxic;N: Dangerous for the environment;

[ Risk Phrases ]:
R23/25;R33;R50/53

[ Safety Phrases ]:
S20/21-S28-S45-S60-S61-S28A

[ RIDADR ]:
UN 3077 9/PG 3

[ WGK Germany ]:
3

[ RTECS ]:
DK7700000

[ Packaging Group ]:
III

[ Hazard Class ]:
6.1(b)

[ HS Code ]:
2927000090

Synthetic Route

Precursor & DownStream

Precursor

  • 1-methylselanyl-2-nitrobenzene
  • Benzenamine,2-(methylseleno)-
  • zinc salt of o-aminophenylselenide
  • Acetyl chloride
  • N-(2-methylselanylphenyl)acetamide
  • Diselenide,bis(2-nitrophenyl)
  • Ethanoic anhydride
  • 1-(2-methylselanylphenyl)ethanone
  • cyclohexa-1,3-dien-5-yne

DownStream

  • tetramethyl 9,10-dihydroazepino[2,1-b][1,3]benzoselenazole-7,8,9,10-tetracarboxylate
  • 2-Methyl-3-ethylbenzoselenazole-3-ium·iodide
  • Benzoselenazolium,2,3-dimethyl-, iodide (8CI,9CI)
  • 3-ethyl-2-methylbenzoselenazolium 4-methylbenzenesulphonate
  • 1-(1,3-benzoselenazol-2-yl)propan-2-one
  • 2-(1,3-benzoselenazol-2-yl)-1-pyridin-3-ylethanone

Customs

[ HS Code ]: 2927000090

[ Summary ]:
2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%


Related Compounds

  • 5-Chloro-2-methylbenzoselenazole
  • 5-Methoxy-2-Methylbenzoselenazole
  • 2-methylbenzoselenazole methiodide
  • 2-methylbenzoselenazole methiodide
  • trichloro(2-methylbenzoselenazole)gold(III)
  • 2-(4-Methylpiperazin-1-yl)-5-(trifluoromethyl)aniline
  • 4-((Cyclohexylamino)methyl)benzoic acid hydrochloride
  • 6-Bromo-3-chloro-2-fluoroiodobenzene
  • 1-[(2,4-Dichlorophenyl)methyl]-N-(1,1-dimethylethyl)-2-methyl-1H-indole-3-methanamine
  • 2-Methoxy-6-(pyrazol-1-yl)-benzonitrile
  • 1H-3-Benzazepin-7-ol, 8-chloro-2,3,4,5-tetrahydro-5-(3-iodophenyl)-3-methyl-, (S)-
  • (4-Methyl-tetrahydro-furan-2-yl)-methanol
  • N-(1-cyanocyclopentyl)-2-[4-(4-fluorobenzenesulfonyl)-1,4-diazepan-1-yl]acetamide
  • 4,5,6,7-Tetrahydrobenzo[d]isoxazole-3-carbaldehyde
  • tert-Butyl-DL-alanine
  • 3,5-dimethyl-N-((1r,4r)-4-(pyrimidin-2-yloxy)cyclohexyl)isoxazole-4-carboxamide