| Identification | More | [Name]
ALPHA-D-GALACTURONIC ACID HYDRATE | [CAS]
91510-62-2 | [Synonyms]
ALPHA-D-GALACTURONIC ACID HYDRATE
D(+)-GALACTURONIC ACID MONOHYDRATE
D-GALACTURONIC ACID MONOHYDRATE
GALACTURONIC ACID MONOHYDRATE, D-(+)- | [EINECS(EC#)]
211-682-6 | [Molecular Formula]
C6H12O8 | [MDL Number]
MFCD00071585 | [Molecular Weight]
212.15 | [MOL File]
91510-62-2.mol |
| Chemical Properties | Back Directory | [Appearance]
white to light beige fine powder | [Melting point ]
156-159℃ | [alpha ]
+51.7°(23℃/D, ｃ=1, H2O) | [refractive index ]
52.5 ° (C=10, H2O) | [storage temp. ]
Inert atmosphere,Room Temperature | [solubility ]
DMSO (Slightly, Sonicated), Methanol (Slightly), Water (Slightly) | [form ]
Powder | [color ]
White to Off-white | [optical activity]
[α]20/D +53±2°, 5 hr, c = 10% in H2O | [Water Solubility ]
Soluble in water | [Merck ]
4337 | [BRN ]
1727087 | [CAS DataBase Reference]
91510-62-2(CAS DataBase Reference) |
| Hazard Information | Back Directory | [Chemical Properties]
white to light beige fine powder | [Uses]
ALPHA-D-GALACTURONIC ACID HYDRATE is highly purified product form Pectine.It is used in the synthesis of N-(D-galacturonoyl) amino acids and dipeptides.
| [Uses]
D-(+)-Galacturonic acid monohydrate is a chemical used in the synthesis of N-(D-galacturonoyl) amino acids and dipeptides. | [Uses]
Highly purified product form Pectine. | [storage]
Store at RT | [Purification Methods]
Crystallisation of the acid from 95% EtOH and drying it in a vacuum desiccator (12mm) over P2O5 gives the monohydrate mixture of and anomers (mostly -) as white micro needles, which sinter at ~100-111o and melt at 159-160o, [] D 20 +107o (initial, c 4 in H2O mutarotating to +51o). [Link & Sell Biochemical Preparations 3 74, 78 1953, Beilstein 3 IV 2000.] The -anomer is obtained by warming the -anomer in EtOH, AcOH or EtOAc and has m 1 6 0o (165o, sinters at 1 4 0o), [] D 20 +27o (initial, c 2 in H2O mutarotating to +55.3o in 24hours). The sodium salt [14984-39-5] M 216.1 has [] D 20 +27o (c 10 in H2O after 5hours). The phenylhydrazone has m 141o(from MeOH). [Ehrlich & Schubert Chem Ber 62 1974, 2014 1929, Anderson & King J Chem Soc 5333 1961, Beilstein 3 IV 2001.] |
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