9002-18-0
Product Name:
Agar
Formula:
C14H24O9
Synonyms:
Agar;Agar-agar;Gum agar;MACCONKEY agar;MacConkey medium
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Agar is odourless or has a slight characteristic odour. Unground agar usually occurs in bundles consisting of thin, membranous, agglutinated strips, or in cut, flaked or granulated forms. It may be light yellowish-orange, yellowish-grey to pale yellow, or colourless. It is tough when damp, brittle when dry. Powdered agar is white to yellowish-white or pale yellow. When examined in water under a microscope, agar powder appears more transparent. In chloral hydrate solution, the powdered agar appears more transparent than in water, more or less granular, striated, angular and occasionally contains frustules of diatoms. Gel strength may be standardised by the addition of dextrose and maltodextrines or sucrose |
|---|---|
| Color/Form | Transparent strips or coarse or fine powder |
| Odor | Odorless |
| Taste | Tasteless |
| Solubility | Insoluble in cold water; soluble in boiling water |
| Decomposition | When heated to decomposition, it emits acrid smoke and fumes. |
| Viscosity | RELATIVELY LOW VISCOSITIES FOR SEAWEED EXTRACTS; VISCOSITY IS DEPENDENT ON TEMP & PH, BUT FAIRLY CONSTANT FROM PH 4.5-9.0 |
| Other Experimental Properties | DRIED HYDROPHILIC COLLOIDAL SUBSTANCE; RICH IN INDIGESTIBLE HEMICELLULOSE |
| Chemical Classes | Biological Agents -> Polysaccharides |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
COMPUTED DESCRIPTORS
| Molecular Weight | 336.33 g/mol |
|---|---|
| XLogP3 | -2.2 |
| Hydrogen Bond Donor Count | 4 |
| Hydrogen Bond Acceptor Count | 9 |
| Rotatable Bond Count | 4 |
| Exact Mass | 336.14203234 g/mol |
| Monoisotopic Mass | 336.14203234 g/mol |
| Topological Polar Surface Area | 127 Ų |
| Heavy Atom Count | 23 |
| Formal Charge | 0 |
| Complexity | 408 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 6 |
| Undefined Atom Stereocenter Count | 4 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Agar is a natural product found in Gracilariopsis longissima with data available.