(9BR)-2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-(2H,9bH)-dibenzofuran-1,3-dion
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- CAS-Nr.
- 7562-61-0
- Bezeichnung:
- (9BR)-2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-(2H,9bH)-dibenzofuran-1,3-dion
- Englisch Name:
- (+)-Usniacin
- Synonyma:
- (+)-USNEIN;(+)-Usnein;(r)-usnicaci;(+)-USNIACIN;D-USNIC ACID;(+)-usnicaci;(+)-Usniacin;d-usninicacid;(R)-Usnicacid;plus-usnic acid
- CBNumber:
- CB9422382
- Summenformel:
- C18H16O7
- Molgewicht:
- 344.32
- MOL-Datei:
- 7562-61-0.mol
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(9BR)-2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-(2H,9bH)-dibenzofuran-1,3-dion Eigenschaften
- Schmelzpunkt:
- 201-203 °C(lit.)
- alpha
- 488 º (c=0.4, CHCl3)
- Siedepunkt:
- 399.43°C (rough estimate)
- Dichte
- 1.2869 (rough estimate)
- Brechungsindex
- 1.4790 (estimate)
- storage temp.
- Sealed in dry,Room Temperature
- Löslichkeit
- almost transparency in Chloroform
- Aggregatzustand
- powder to crystal
- pka
- 4.00±0.40(Predicted)
- Farbe
- Light orange to Yellow to Green
- Optische Aktivität
- [α]25/D +488°, c = 0.7% in chloroform
- Wasserlöslichkeit
- Partly soluble in water. Soluble in acetone, ethanol, chloroform and furfural.
- Merck
- 14,9893
- BRN
- 96698
- LogP
- 1.270 (est)
- CAS Datenbank
- 7562-61-0(CAS DataBase Reference)
Sicherheit
- Risiko- und Sicherheitserklärung
- Gefahreninformationscode (GHS)
| Kennzeichnung gefährlicher |
Xn |
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| R-Sätze: |
22 |
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| S-Sätze: |
36 |
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| WGK Germany |
3 |
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| RTECS-Nr. |
HP5295050 |
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| F |
3-10 |
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| HazardClass |
IRRITANT |
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| HS Code |
29329990 |
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| Bildanzeige (GHS) |
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| Alarmwort |
Warnung |
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H302 |
Gesundheitsschädlich bei Verschlucken. |
Akute Toxizität oral |
Kategorie 4 |
Warnung |
![GHS hazard pictograms]() src="/GHS07.jpg" width="20" height="20" /> |
P264, P270, P301+P312, P330, P501 |
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| Sicherheit |
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(9BR)-2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-(2H,9bH)-dibenzofuran-1,3-dion Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
S-Sätze Betriebsanweisung:
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Verwenden
Usnic acid is used as fragrance; preservative in deodorants; in anti ac ne formulations; antibiotic for topical application.
Allgemeine Beschreibung
(+)-Usniacin is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG.
Kontakt-Allergie
Usnic acid is a component of lichens, also used as a
topical antibiotic. Allergic contact dermatitis from
lichens occurs mainly occupationally in forestry and
horticultural workers, and in lichen pickers.
läuterung methode
This very weak acid is the natural form which is recrystallised from Me2CO, MeOH or *C6H6. At 25o it is soluble in H2O (<0.01%), Me2CO (0.77%), EtOAc (0.88%), MeOCH2CH2OH (0.22%) and furfural (7.32%). [Curd & Robertson J Chem Soc 894 1937, Barton & Brunn J Chem Soc 603 1953, resolution: Dean et al. J Chem Soc 1250 1953, synthesis: Barton et al. J Chem Soc 538 1956, Beilstein 18/5 V 586.]
(9BR)-2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-(2H,9bH)-dibenzofuran-1,3-dion Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
(9BR)-2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-(2H,9bH)-dibenzofuran-1,3-dion Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 258)Lieferanten
7562-61-0((9BR)-2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-(2H,9bH)-dibenzofuran-1,3-dion)Verwandte Suche:
- D-2,6-DIACETYL-7,9-DIHYDROXY-8,9BETA-DIMETHYL-1,3[2H,9BH]-DIBENZOFURANDIONE
- D-USNIC ACID
- TIMTEC-BB SBB006458
- (+)-USNEIN
- (+)-USNIACIN
- (r)-usnicaci
- 3(2h,9bh)-dibenzofurandione,2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl-(9b
- 6-diacetyl-1,7,9-trihydroxy-8,9b-dimethyl-d-3(9bh)-dibenzofuranon
- 6-diacetyl-8,9b-dimethyl-1,7,9-trihydroxy-d-3(9bh)-dibenzofuranon
- d-usninicacid
- 2,6-DIACETYL-7,9-DIHYDROXY-8,9B-DIMETHYLDIBENZOFURAN-1,3(2H,9BH)-DIONE
- (+)-Usnic acid from Usnea dasypoga
- plus-usnic acid
- (9bR)-2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl-(2H,9bH)-dibenzofuran-1,3-dione
- (R)-Usnicacid
- (USNEA DASYPOGA EXTRACT)(+) USNIC ACID 98%
- DIFFRACTIC ACID(SH)
- 1,3(2H,9bH)-Dibenzofurandione,2,6-diacetyl-7,9-
- dihydroxy-8,9b-dimethyl-,(9bR)-
- (+)-Usnic acid from Usnea dasypoga, 2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzofuran-1,3(2H,9bH)-dione
- Usnic acid，Usninic acid，Usnein
- Usnea longissima Ach
- (9BR)-2,6-diacetyl-1,7,9-trihydroxy-8,9b-dimethyldibenzo[b,d]furan-3(9bH)-one
- (+)-Usniacin(D-Usnic acid)
- (R)-1,1'-(1,7,9-trihydroxy-8,9b-diMethyl-3-oxo-3,9b-dihydrodibenzo[b,d]furan-2,6-diyl)diethanone
- D-2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-1,3(2H,9bH)-dibenzofurandione
- (+)-Usnic acid, 98%
yellow to yellow-green powder
- (9bR)-2,6-diacetyl-3,7,9-trihydroxy-8,9b-dimethyl-1-dibenzofuranone
- (+)-Usnic acid from Usnea dasypog
- (+)-usnicaci
- (9bR)-2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzofuran-1,3-dione
- (9bR)-2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzo[b,d]furan-1,3(2H,9bH)-dione
- 2,6-diacetyl-1,2,3,9b-tetrahydro-7,9-dihydroxy-8,9b-dimethyl...
- (+)-Usnein
- (+)-Usniacin
- (+)-Usnic acid from Usnea dasypoga
- (9bR)-2,6-diacetyl-3,7,9-trihydroxy-8,9b-dimethyldibenzofuran-1-one
- 7562-61-0
- Chiral Building Blocks
- Benzofurans
- Antibiotics T-Z
- Asymmetric Synthesis
- Antibiotics A to Z
- Antibiotics
- BioChemical
- Heterocyclic Building Blocks
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