Arabitol
Title: Arabitol
CAS Registry Number: 2152-56-9
CAS Name: Arabinitol
Additional Names: 1,2,3,4,5-pentanepentol; arabite
Molecular Formula: C5H12O5
Molecular Weight: 152.15
Percent Composition: C 39.47%, H 7.95%, O 52.58%
Literature References: D-Form obtained by reduction of D-arabinose or D-lyxose with sodium amalgam: Ruff, Ber. 32, 555 (1899); Ruff, Ollendorff, Ber. 33, 1802 (1900); Bertrand, Bull. Soc. Chim. [3] 15, 593 (1896). Production by fermentation from molasses using Saccharomyces rouxii and Saccharomyces mellis: Lavin, Holloway, US 2934474 (1960 to Comm. Solvents). L-Form obtained by reduction of L-arabinose with sodium amalgam: Kiliani, Ber. 20, 1234, 1571 (1887). DL-Form obtained from equal parts of D- and L-arabitol: Ruff, loc. cit. Synthesis: Lespian, Compt. Rend. 206, 1773 (1938).
 
Derivative Type: D-Form
Properties: Big prismatic crystals. Sweet taste. mp 103°. [a]D20 +7.7° (c = 9.26 in satd borax soln). Freely sol in water. One part dissolves in 48 parts of 90% alc at 12°.
Melting point: mp 103°
Optical Rotation: [a]D20 +7.7° (c = 9.26 in satd borax soln)
 
Derivative Type: Pentanitrate
Molecular Formula: C5H7N5O15
Molecular Weight: 377.13
Percent Composition: C 15.92%, H 1.87%, N 18.57%, O 63.64%
Properties: Sirup, sol in alcohol, ether, acetone. Strongly reduces Fehling's soln.
 
Derivative Type: L-Form
Properties: Wart-like crystals, sweet taste. mp 102°. Weakly levorotatory in satd borax soln. Freely sol in water and in boiling 90% alc. One part dissolves in 46 parts of 90% alc at 12°. Does not reduce Fehling's soln.
Melting point: mp 102°
 
Derivative Type: DL-Form
Properties: Prisms from 90% alc. mp 105-106°. One part dissolves in 66 parts of 90% alc at 12°.
Melting point: mp 105-106°

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