Home > Name List By c > Cyclopropanecarboxylicacid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-,(1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadien-1-yl-2-cyclopen...

CAS No 121-21-1 , Cyclopropanecarboxylicacid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-,(1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadien-1-yl-2-cyclopenten-1-yl ester,(1R,3R)-

  • Name: Cyclopropanecarboxylicacid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-,(1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadien-1-yl-2-cyclopenten-1-yl ester,(1R,3R)-
  • Synonyms: Pyrethrin 1(6CI); Chrysanthemummonocarboxylicacid pyrethrolone ester;Cyclopropanecarboxylicacid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-,(1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadienyl-2-cyclopenten-1-yl ester, (1R,3R)-(9CI); (+)-Pyrethronyl (+)-trans-chrysanthemate; Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-,2-methyl-4-oxo-3-(2,4-pentadienyl)-2-cyclopenten-1-yl ester, [1R-[1a[S*(Z)],3b]]-; Cyclopropanecarboxylic acid,2,2-dimethyl-3-(2-methylpropenyl)-, ester with4-hydroxy-3-methyl-2-(2,4-pentadienyl)-2-cyclopenten-1-one (8CI); Pyrethrin I;Cyclopropanecarboxylicacid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-,(1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadien-1-yl-2-cyclopenten-1-yl ester,(1R,3R)-;
  • CAS Registry Number:
  • Transport: 2902
  • Flash Point: 182.3°C
  • Boiling Point: 424.3°Cat760mmHg
  • Density: 1.04g/cm3
  • Refractive index: 1.524
  • Safety Statements: Poison by ingestion and intravenous routes. When heated to decomposition it emits acrid smoke and irritating fumes. An insecticide. See also PYRETHRIN; PYRETHRIN II; PYRETHRINS.
  • Hazard Symbols: Xn: Harmful;N: Dangerous for the environment;
  • Flash Point: 182.3°C
  • EINECS: 204-455-8
  • Molecular Weight: 328.45
  • InChI: InChI=1/C21H28O3/c1-7-8-9-10-15-14(4)18(12-17(15)22)24-20(23)19-16(11-13(2)3)21(19,5)6/h7-9,11,16,18-19H,1,10,12H2,2-6H3/b9-8+/t16-,18+,19+/m1/s1
  • Risk Statements: 20/21/22-50/53
  • Molecular Formula: C21H28O3
  • Molecular Structure:CAS No:121-21-1 Cyclopropanecarboxylicacid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-,(1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadien-1-yl-2-cyclopenten-1-yl ester,(1R,3R)-

Related products

Search by region :

Select to

121-21-1 Cyclopropanecarboxylicacid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-,(1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadien-1-yl-2-cyclopenten-1-yl ester,(1R,3R)-

  • United States HBCChem, Inc. [Manufacturers]
  • Tel: +1-510-219-6317
  • Fax: +1-510-675-0318
  • Address: null Union City,CaliforniaUnited States
Contact Supplier

121-21-1 PYRETHRIN I

  • China Nanjing Chemlin Chemical Industry Co.,Ltd. [Manufacturer]
  • Tel: +86 25 8369-7070/ +86 138 51816776 (Mobile)
  • Fax: +86 25 8345-3275
  • Address: Rm.902 Longyin Plaza,
    No. 217 Zhongshan Rd.
    (N)Nanjing 210009,China null,nullChina
Contact Supplier

Select to

1/1
References of Cyclopropanecarboxylicacid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-,(1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadien-1-yl-2-cyclopenten-1-yl ester,(1R,3R)-
Title: Pyrethrins
Literature References: Active insecticidal constituents of pyrethrum flowers. Isoln: Staudinger, Ruzicka, Helv. Chim. Acta 7, 177 (1924). Prepn by reconstitution from pyrethrolone and chrysanthemic acid: Elliott, Janes, Chem. Ind. (London) 1969, 270. Structure: Crombie et al., J. Chem. Soc. 1956, 3963; Godin et al., ibid. (C) 1966, 332. Stereochemistry: Begley et al., Chem. Commun. 1972, 1276. Biosynthesis: Crowley et al., Biochim. Biophys. Acta 60, 312 (1962). Review: Crombie, Elliott, Fortschr. Chem. Org. Naturst. 19, 120 (1961). Review of toxicology and human exposure: Toxicological Profile for Pyrethrins and Pyrethroids (PB2004-100004, 2003) 332 pp.
 
Derivative Type: Pyrethrin I
CAS Registry Number: 121-21-1
CAS Name: (1R,3R)-2,2-Dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid (1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadienyl-2-cyclopenten-1-yl ester
Synonyms: chrysanthemummonocarboxylic acid pyrethrolone ester
Molecular Formula: C21H28O3
Molecular Weight: 328.45
Percent Composition: C 76.79%, H 8.59%, O 14.61%
Properties: Viscous liquid. bp0.0005 146-150°. nD20 1.5242. [a]D20 -14° (isooctane). uv max (95% ethanol): 225 nm (e 36400). Oxidizes readily and becomes inactive in air. Should be refrigerated and stored in darkness. Stability data of pyrethrins I and II: Godin, Pyrethrum Post 9, 17 (1968), C.A. 71, 12031q (1969). Practically insol in water. Sol in alcohol, petr ether, kerosene, carbon tetrachloride, ethylene dichloride, nitromethane.
Boiling point: bp0.0005 146-150°
Optical Rotation: [a]D20 -14° (isooctane)
Index of refraction: nD20 1.5242
Absorption maximum: uv max (95% ethanol): 225 nm (e 36400)
 
Derivative Type: Pyrethrin II
CAS Registry Number: 121-29-9
CAS Name: (1R,3R)-3-[(1E)-3-methoxy-2-methyl-3-oxo-1-propenyl]-2,2-dimethylcyclopropanecarboxylic acid (1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadienyl-2-cyclopenten-1-yl ester
Synonyms: chrysanthemumdicarboxylic acid monomethyl ester pyrethrolone ester
Molecular Formula: C22H28O5
Molecular Weight: 372.45
Percent Composition: C 70.95%, H 7.58%, O 21.48%
Properties: Viscous liquid. Oxidizes rapidly and becomes inactive in air. bp0.007 192-193°. nD20 1.5355. [a]D19 +14.7° (isooctane-ether). uv max (95% ethanol): 229 nm (e 45850). Practically insol in water. Sol in alc, petr ether (less sol than pyrethrin I), kerosene, carbon tetrachloride, ethylene dichloride, nitromethane.
Boiling point: bp0.007 192-193°
Optical Rotation: [a]D19 +14.7° (isooctane-ether)
Index of refraction: nD20 1.5355
Absorption maximum: uv max (95% ethanol): 229 nm (e 45850)
 
CAUTION: Direct skin contact or inhalation may cause severe allergic attacks in sensitive people. Potential symptoms of overexposure are erythema, dermatitis, papules, pruritus; asthma, sneezing, vasomotor rhinitis, anaphylactic reactions; numbness of lips and tongue, sneezing, vomiting, diarrhea; tinnitus, headache, restlessness, incoordination, clonic convulsions, stupor, prostration; death due to respiratory paralysis. See: Clinical Toxicology of Commercial Products, R. E. Gosselin et al., Eds. (Williams & Wilkins, Baltimore, 5th ed., 1984) Section III, pp 352-355; NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 270.
Use: Insecticide.