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PRECOCENE II

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PRECOCENE II Basic information

Product Name:
PRECOCENE II
Synonyms:
  • PRECOCENE II
  • 6,7-DIMETHOXY-2,2-DIMETHYL-3-CHROMENE
  • 6,7-dimethoxy-2,2-dimethyl-2h-1-benzopyra
  • 6,7-dimethoxy-2,2-dimethyl-2h-benzo(b)pyran
  • ageratochromene
  • precocene2
  • 6,7-dimethoxy-2,2-dimethyl2H-1-benzopyran
  • 6,7-Dimethoxy-2,2-dimethylchromene
CAS:
644-06-4
MF:
C13H16O3
MW:
220.26
EINECS:
211-408-5
Product Categories:
  • Intermediates & Fine Chemicals
  • Pharmaceuticals
Mol File:
644-06-4.mol
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PRECOCENE II Chemical Properties

Melting point:
47.50C
Boiling point:
301.2°C (rough estimate)
Density 
1.1455 (rough estimate)
refractive index 
1.4740 (estimate)
Flash point:
113 °C
storage temp. 
-20°C Freezer
solubility 
Chloroform (Slightly), Methanol (Slightly)
form 
Solid
color 
Pale Green to Yellow
LogP
3.380 (est)
CAS DataBase Reference
644-06-4
EPA Substance Registry System
2H-1-Benzopyran, 6,7-dimethoxy-2,2-dimethyl- (644-06-4)
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Safety Information

RTECS 
DJ2527000
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PRECOCENE II Usage And Synthesis

Chemical Properties

Crystalline Solid

Uses

Anti-juvenile hormones found in plants that induce reversible precocious metamorphosis and sterilization in insects by suppressing the function of the corpora allata gland.

Definition

ChEBI: Precocene II is a member of chromenes. It has a role as a member of precocenes.

Synthesis Reference(s)

Journal of Heterocyclic Chemistry, 25, p. 871, 1988 DOI: 10.1002/jhet.5570250333
Synthetic Communications, 20, p. 1347, 1990 DOI: 10.1080/00397919008052847
Tetrahedron Letters, 32, p. 7251, 1991 DOI: 10.1016/0040-4039(91)80489-S

Safety Profile

Questionable carcinogen with experimental carcinogenic data. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.

PRECOCENE IISupplier

J & K SCIENTIFIC LTD.
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010-82848833 400-666-7788
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Chembest Research Laboratories Limited
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021-20908456
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Chemsky（shanghai）International Co.,Ltd.
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021-50135380
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BioBioPha Co., Ltd.
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0871-65217109 13211707573;
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y.liu@mail.biobiopha.com
ShangHai YuanYe Biotechnology Co., Ltd.
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021-61312847 13636370518
Email
shyysw007@163.com
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