Introduction:Basic information about CAS 121-21-1|2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl [1R-[1alpha[S*(Z)],3beta]]-c, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | 2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl [1R-[1alpha[S*(Z)],3beta]]-chrysanthemate |
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| CAS Number | 121-21-1 | Molecular Weight | 328.445 |
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| Density | 1.0±0.1 g/cm3 | Boiling Point | 424.3±45.0 °C at 760 mmHg |
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| Molecular Formula | C21H28O3 | Melting Point | / |
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| MSDS | / | Flash Point | 182.2±28.8 °C |
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Names
| Name | pyrethrin I |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 1.0±0.1 g/cm3 |
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| Boiling Point | 424.3±45.0 °C at 760 mmHg |
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| Molecular Formula | C21H28O3 |
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| Molecular Weight | 328.445 |
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| Flash Point | 182.2±28.8 °C |
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| Exact Mass | 328.203857 |
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| PSA | 43.37000 |
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| LogP | 5.49 |
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| Vapour Pressure | 0.0±1.0 mmHg at 25°C |
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| Index of Refraction | 1.525 |
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| InChIKey | ROVGZAWFACYCSP-NEWSRXKRSA-N |
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| SMILES | C=CC=CCC1=C(C)C(OC(=O)C2C(C=C(C)C)C2(C)C)CC1=O |
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Toxicological Information
CHEMICAL IDENTIFICATION - RTECS NUMBER :
- GZ1725000
- CHEMICAL NAME :
- Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methylpropenyl)-, ester with 4-hydroxy- 3-methyl-2-(2,4-pentadienyl)-2-cyclopenten-1-one
- CAS REGISTRY NUMBER :
- 121-21-1
- BEILSTEIN REFERENCE NO. :
- 2004306
- LAST UPDATED :
- 199612
- DATA ITEMS CITED :
- 8
- MOLECULAR FORMULA :
- C21-H28-O3
- MOLECULAR WEIGHT :
- 328.49
- WISWESSER LINE NOTATION :
- L5V BUTJ B2U2U1 C1 DOV- BL3TJ A1 A1 C1UY1&1
HEALTH HAZARD DATAACUTE TOXICITY DATA - TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 260 mg/kg
- TOXIC EFFECTS :
- Behavioral - somnolence (general depressed activity) Behavioral - tremor Behavioral - convulsions or effect on seizure threshold
- REFERENCE :
- PCBPBS Pesticide Biochemistry and Physiology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1971- Volume(issue)/page/year: 2,308,1972
- TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 5 mg/kg
- TOXIC EFFECTS :
- Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia Lungs, Thorax, or Respiration - acute pulmonary edema
- REFERENCE :
- BIOGAL Biologico. (Instituto Biologica, Av. Cons. Rodriques Alves, 1252, CEP 04014, Sao Paulo, Brazil) V.1- 1935- Volume(issue)/page/year: 41,283,1975
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Unreported
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 960 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- 30ZDA9 "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971 Volume(issue)/page/year: -,131,1971 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-FINLAND:TWA 5 mg/m3;STEL 10 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 5 mg/m3;STEL 10 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83466 No. of Facilities: 152 (estimated) No. of Industries: 3 No. of Occupations: 3 No. of Employees: 493 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83466 No. of Facilities: 81 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 340 (estimated)
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Safety Information
| Hazard Codes | Xn: Harmful;N: Dangerous for the environment; |
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| Risk Phrases | R20/21/22 |
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| Safety Phrases | S13;S60;S61 |
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| RIDADR | UN 2902 |
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| Packaging Group | III |
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| Hazard Class | 6.1(b) |
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| HS Code | 2918300011 |
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Customs
Synonyms
| EINECS 204-455-8 |
| (1S)-2-methyl-4-oxo-3-[(2Z)-penta-2,4-dien-1-yl]cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropane-1-carboxylate |
| Dehydroleucodin |
| Lidbeckialactone |
| PYRETHRIN 1 |
| dehydroleucodine |
| (1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadien-1-yl-2-cyclopenten-1-yl (1R,3R)-2,2-dimethyl-3-(2-methyl-1-propen-1-yl)cyclopropanecarboxylate |
| (Z)-(S)-2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl (+)-trans-chrysanthemate |
| (Z)-(S)-2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl (1R)-trans-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate |
| (Z)-(S)-2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate |