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Merck
CN

15702

SAFC

Tropolone

Synonym(s):

2-Hydroxy-2,4,6-cycloheptatrien-1-one

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About This Item

Empirical Formula (Hill Notation):
C7H6O2
CAS Number:
533-75-5
Molecular Weight:
122.12
Beilstein:
1904978
EC Number:
208-577-2
MDL number:
MFCD00004158
UNSPSC Code:
12352200
NACRES:
NA.21

Key Documents

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Assay

≥98.0% (GC)

Quality Level

400

form

solid

impurities

≤20 mg/kg heavy metals
≤3880 mg/kg residual solvents (cyclohexane) (GLC-HS)
≤5000 mg/kg residual solvents (pentane, MTBE) (GLC-HS)
≤890 mg/kg residual solvents (toluene) (GLC-HS)

bp

80-84 °C/0.1 mmHg (lit.)

mp

50-52 °C (lit.)

suitability

suitable for manufacturing use

storage temp.

2-8°C

SMILES string

OC1=CC=CC=CC1=O

InChI

1S/C7H6O2/c8-6-4-2-1-3-5-7(6)9/h1-5H,(H,8,9)

InChI key

MDYOLVRUBBJPFM-UHFFFAOYSA-N

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Analysis Note

remarks on GC:
acetic acid ≤5000 mg/kg; dichloroacetic acid: determine

solubility
0.25g in 5 ml ethanol, clear to very faintly turbid

solubility color:
colorless to very dark yellow and colorless to very dark greenish yellow and colorless to very dark brownish yellow and colorless to very dark orange

Signal Word

Danger

Hazard Statements

H314,H317,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

233.6 °F - closed cup

Flash Point(C)

112 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
BCCC1973
BCCC1972
BCCC1971
BCCC1895
BCCB5729

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Yi Shen et al.
Chemical & pharmaceutical bulletin, 60(11), 1437-1441 (2012-11-06)
A new butyrolactone, 7″-hydroxybutyrolactone III (1) and three new cycloheptanetriones, terretrione A-C (2-4), together with five known compounds, butyrolactone I, cyclo(Leu-Pro), cyclo(Val-Pro), cyclo(Ile-Pro), cyclo(Phe-Pro), were isolated from mangrove-associated marine fungus Aspergillus terreus. The structures of these compounds were elucidated on
Sebastian Thole et al.
The ISME journal, 6(12), 2229-2244 (2012-06-22)
Phaeobacter gallaeciensis, a member of the abundant marine Roseobacter clade, is known to be an effective colonizer of biotic and abiotic marine surfaces. Production of the antibiotic tropodithietic acid (TDA) makes P. gallaeciensis a strong antagonist of many bacteria, including
Martine Berger et al.
Journal of bacteriology, 193(23), 6576-6585 (2011-09-29)
The production of N-acyl homoserine lactones (AHLs) is widely distributed within the marine Roseobacter clade, and it was proposed that AHL-mediated quorum sensing (QS) is one of the most common cell-to-cell communication mechanisms in roseobacters. The traits regulated by AHL-mediated
Jessica L Fullagar et al.
Chemical communications (Cambridge, England), 49(31), 3197-3199 (2013-03-14)
Tropolone emerged from the screening of a chelator fragment library (CFL) as an inhibitor of the Zn(2+)-dependent virulence factor, Pseudomonas aeruginosa elastase (LasB). Based on this initial hit, a series of substituted tropolone-based LasB inhibitors was prepared, and a compound
Mohammad R Seyedsayamdost et al.
Journal of the American Chemical Society, 133(45), 18343-18349 (2011-09-21)
Marine bacteria and microalgae engage in dynamic symbioses mediated by small molecules. A recent study of Phaeobacter gallaeciensis, a member of the large roseobacter clade of α-proteobacteria, and Emiliania huxleyi, a prominent member of the microphytoplankton found in large algal
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