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CAS No 19700-21-1 , (4S,4aS,8aR)-4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol

  • Name: (4S,4aS,8aR)-4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol
  • Synonyms: (4S,4aS,8aR)-4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol; EINECS 243-239-8;(-)-geosmin; Octahydro-4alpha,8abeta-dimethyl-4aalpha(2H)-naphthol;
  • CAS Registry Number:
  • Density: 0.985 g/cm3
  • Refractive index: 1.506
  • EINECS: 243-239-8
  • Molecular Weight: 182.30248
  • InchiKey: JLPUXFOGCDVKGO-TUAOUCFPSA-N
  • InChI: InChI=1S/C12H22O/c1-10-6-5-8-11(2)7-3-4-9-12(10,11)13/h10,13H,3-9H2,
    1-2H3/t10-,11+,12-/m0/s1
  • Molecular Formula: C12H22O
  • Molecular Structure:CAS No:19700-21-1 (4S,4aS,8aR)-4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol

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References of (4S,4aS,8aR)-4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol
Title: Geosmin
CAS Registry Number: 19700-21-1
CAS Name: [4S-(4a,4aa,8ab)]-Octahydro-4,8a-dimethyl-4a(2H)-naphthalenol
Synonyms: octahydro-4a,8ab-dimethyl-4aa(2H)-naphthol; 1,10-trans-dimethyl-trans-(9)-decalol
Molecular Formula: C12H22O
Molecular Weight: 182.30
Percent Composition: C 79.06%, H 12.16%, O 8.78%
Literature References: Major volatile component of beet essence, also determined to be the potent earthy odor contaminant of fish, beans, water: A. C. Thaysen, Ann. Appl. Biol. 23, 99 (1936); J. Silvey, A. W. Roach, J. Am. Water Works Assoc. 56, 60 (1964); A. A. Rosen et al., Water Treat. Exam. 19 (Pt. 2), 106 (1970); R. G. Buttery et al., J. Agric. Food Chem. 24, 419, 1246 (1976). Isoln from Actinomyetes, algae: N. N. Gerber, H. A. Lechevalier, Appl. Microbiol. 13, 935 (1965); A. A. Rosen et al., ibid. 16, 178 (1968); R. S. Safferman et al., Environ. Sci. Technol. 1, 429 (1967). Isoln from beets: K. E. Murray, P. A. Bannister, Chem. Ind. (London) 1975, 973; L. D. Tyler et al., J. Agric. Food Chem. 26, 1466 (1978). Structure: N. N. Gerber, Biotechnol. Bioeng. 9, 321 (1967); eidem, Tetrahedron Lett. 1968, 2971. Biological degradation: L. V. Narayan, W. J. Nunez, J. Am. Water Works Assoc. 66 (Pt. 1), 532 (1974).
Properties: Colorless neutral oil, bp 270°. [a]D25 -16.5°. Threshold odor conc: 0.1 ppb. Decomp in acid to odorless compds.
Boiling point: bp 270°
Optical Rotation: [a]D25 -16.5°