Agar

• CAS: 9002-18-0
• Catalog Number: ACM9002180
• Category: Main Products
• Molecular Weight: 336.33
• Molecular Formula: C14H24O9
• Synonyms: Bengalgelatin
• IUPAC Name: (2R,3S,4S,5R)-2-(hydroxymethyl)-6-[[(4R,5S)-4-hydroxy-3-methyl-2,6-dioxabicyclo[3.2.1]octan-8-yl]oxy]-4-methoxyoxane-3,5-diol
• Canonical SMILES: CC1[C@H]([C@H]2C(C(O1)CO2)OC3[C@@H]([C@H]([C@H]([C@H](O3)CO)O)OC)O)O
• InChI: GYYDPBCUIJTIBM-DYOGSRDZSA-N
• InChI Key: InChI=1S/C14H24O9/c1-5-8(16)13-11(7(21-5)4-20-13)23-14-10(18)12(19-2)9(17)6(3-15)22-14/h5-18H,3-4H2,1-2H3/t5?,6-,7?,8-,9+,10-,11?,12+,13+,14?/m1/s1
• Melting Point: 85-95 °C
• Appearance: Light Yellow to Beige powder
• Active Content: 90%
• pH: 6.5-7.0
• Physical State: Solid

Case Study

Agar Degradation By Microorganisms And Agar-Degrading Enzymes

Chi, Won-Jae, Yong-Keun Chang, and Soon-Kwang Hong.Applied microbiology and biotechnology 94 (2012): 917-930.

Agar is a mixture of heterogeneous galactans consisting mainly of 3,6-anhydro-galactose (or -galactose-6-sulfate), -galactose, and -galactose (in the conventional form 3,6-anhydro- -galactose or -galactose-6-sulfate) linked alternately by β-(1,4) and α-(1,3) bonds. It is a major component of the cell wall of red algae and has been used in various laboratory and industrial applications due to its gelling properties. Agar-hydrolyzing microorganisms usually produce agarases, which catalyze the hydrolysis of agar. Several agarases have been identified in microorganisms of different genera. Based on their cleavage pattern, they are divided into three types: α-agarase, β-agarase, and β-porphyrinase.
α-Agarases (EC 3.2.1.158) - related to the α-agarase degradation pathway by selective cleavage of α-(1,3) glycosidic bonds (LA-α(1,3)-G) - have been reported from two marine microorganisms (Alteromonas). α-Agarase AgaA purified from culture broth of A. agarlyticus hydrolyzes agarose to agarotetraose and agarohexaose. The native enzyme forms a homodimer with an estimated molecular weight of 360 kDa. α-Agarase AgaA33 from Thalassomonas sp. JAMB-A33 (renamed Thalassomonas agarivorans, isolated from deep-sea sediments at a depth of 230 m) was determined to have a molecular weight of 87 kDa and exists as a monomer. The enzyme is an endo-α-agarase that hydrolyzes agarose to agarotetraose. It can hydrolyze the α-(1,3) glycosidic bonds of not only agarose, but also agarohexaose, neoagarohexaose and porphyrin.

Custom Q&A

What is the molecular formula of Agar?

The molecular formula of Agar is C14H24O9.

What is the molecular weight of Agar?

The molecular weight of Agar is 336.33 g/mol.

What is Agar used for?

Agar is used as a gel in the preparation of solid culture media for microorganisms, as a bulk laxative, in making emulsions, and as a supporting medium for immunodiffusion and immunoelectrophoresis.

What is the IUPAC name of Agar?

The IUPAC name of Agar is (2R,3S,4S,5R)-2-(hydroxymethyl)-6-[[(4R,5S)-4-hydroxy-3-methyl-2,6-dioxabicyclo[3.2.1]octan-8-yl]oxy]-4-methoxyoxane-3,5-diol.

What is the InChIKey of Agar?

The InChIKey of Agar is GYYDPBCUIJTIBM-DYOGSRDZSA-N.

What is the Canonical SMILES of Agar?

The Canonical SMILES of Agar is CC1C(C2C(C(O1)CO2)OC3C(C(C(C(O3)CO)O)OC)O)O.

What is the CAS number of Agar?

The CAS number of Agar is 9002-18-0.

What is the EC number of Agar?

The EC number of Agar is 232-658-1.

What is the FEMA number of Agar?

The FEMA number of Agar is 2012.

What is the formal charge of Agar?

The formal charge of Agar is 0.