Alpha-d-xylopyranose

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  • Identifiers

    CAS number
    6763-34-4

    Molecular formula
    C5H10O5

    SMILES
    C1[C@H]([C@@H]([C@H]([C@H](O1)O)O)O)O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Sweet 62.21%
    Odorless 53.4%
    Woody 44.13%
    Caramellic 38.3%
    Phenolic 24.39%
    Burnt 22.28%
    Vanilla 22.24%
    Smoky 21.47%
    Creamy 18.32%
    Spicy 18.26%

    Scent© AI

  • Properties

    XLogP3-AA
    -2.5

    pKa est.
    5.65 (weak acid)

    Molecular weight
    150.13 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    488°C

    Flash point est.
    182.93 ˚C

  • Synonyms

    • Alpha-d-xylopyranose
    • 6763-34-4
    • a-D-Xylopyranose
    • alpha-D-Xylose
    • (2S,3R,4S,5R)-oxane-2,3,4,5-tetrol
    • Holzzucker
    • Losan
    • alpha-xylose
    • alpha-Xylopyranose (9CI)
    • .alpha.-d-Xylose
    • Wood sugar
    • C791ZE5K1W
    • 130550-15-1
    • .ALPHA.-XYLOSE
    • .ALPHA.-D-XYLOPYRANOSE
    • CCRIS 9027
    • Xylo-Pfan
    • Xylose, pure
    • CHEBI:28518
    • XYLOPYRANOSE, .ALPHA.-D-
    • (2S,3R,4S,5R)-tetrahydro-2H-pyran-2,3,4,5-tetraol
    • 31178-70-8
    • Pentopyranose #
    • rel-(2S,3R,4S,5R)-Tetrahydro-2H-pyran-2,3,4,5-tetraol
    • XYS
    • AI3-19010
    • Xylopyranose, alpha-D-
    • WURCS=2.0/1,1,0/(a212h-1a_1-5)/1/
    • WURCS=2.0/1,1,0/[a212h-1a_1-5]/1/
    • MFCD20731172
    • alpha-xylopyranose
    • BRN 1562108
    • |A-D-Xylose
    • ?-D-XYLOPYRANOSE
    • I+/-lpha-D-Xylopyranose
    • Holzzucker; Losan;-Xylose
    • bmse000026
    • bmse000898
    • UNII-C791ZE5K1W
    • SCHEMBL345574
    • DTXSID301316752
    • tetrahydropyran-2,3,4,5-tetraol
    • GAA76334
    • AKOS024462556
    • DB03389
    • DS-17846
    • CS-0018338
    • NS00068512
    • EN300-95483
    • C01394
    • C02205
    • D70642
    • D85124
    • alpha-D-xylose; D-xylose; xylose; XYLOPYRANOSE
    • Q212774
    • (2S,3R,4S,5R)-tetrahydropyran-2,3,4,5-tetrol
    • Z1270381574
    • 53A5B1A2-9576-4133-B5C5-F31D97E015B3
    • alpha-D-xylopyranose (closed ring structure, complete stereochemistry)
    • 608-587-0
    • 614-092-0

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 4.61
    methanol 21.06
    isopropanol 2.33
    water 1218.61
    ethyl acetate 1.42
    n-propanol 2.2
    acetone 3.41
    n-butanol 1.8
    acetonitrile 1.06
    DMF 121.69
    toluene 0.24
    isobutanol 1.23
    1,4-dioxane 6.19
    methyl acetate 0.77
    THF 6.03
    2-butanone 1.31
    n-pentanol 0.85
    sec-butanol 1.88
    n-hexane 0.08
    ethylene glycol 145.8
    NMP 82.19
    cyclohexane 0.42
    DMSO 485.33
    n-butyl acetate 0.72
    n-octanol 1.22
    chloroform 0.33
    n-propyl acetate 0.55
    acetic acid 28.75
    dichloromethane 0.45
    cyclohexanone 4.07
    propylene glycol 34.87
    isopropyl acetate 1.26
    DMAc 59.24
    2-ethoxyethanol 18.49
    isopentanol 1.47
    n-heptane 0.52
    ethyl formate 1.6
    1,2-dichloroethane 0.63
    n-hexanol 1.67
    2-methoxyethanol 63.78
    isobutyl acetate 0.24
    tetrachloromethane 0.47
    n-pentyl acetate 0.73
    transcutol 18.94
    n-heptanol 1.76
    ethylbenzene 0.16
    MIBK 1.74
    2-propoxyethanol 12.86
    tert-butanol 3.98
    MTBE 0.81
    2-butoxyethanol 7.55
    propionic acid 5.61
    o-xylene 0.59
    formic acid 600.67
    diethyl ether 0.83
    m-xylene 0.57
    p-xylene 0.2
    chlorobenzene 0.14
    dimethyl carbonate 3.92
    n-octane 0.22
    formamide 286.02
    cyclopentanone 5.63
    2-pentanone 2.1
    anisole 0.53
    cyclopentyl methyl ether 2.86
    gamma-butyrolactone 8.53
    1-methoxy-2-propanol 29.63
    pyridine 1.14
    3-pentanone 1.54
    furfural 12.8
    n-dodecane 0.13
    diethylene glycol 52.77
    diisopropyl ether 0.54
    tert-amyl alcohol 3.44
    acetylacetone 6.66
    n-hexadecane 0.14
    acetophenone 1.22
    methyl propionate 2.54
    isopentyl acetate 0.65
    trichloroethylene 0.86
    n-nonanol 1.19
    cyclohexanol 3.51
    benzyl alcohol 1.53
    2-ethylhexanol 1.07
    isooctanol 1.38
    dipropyl ether 1.34
    1,2-dichlorobenzene 0.27
    ethyl lactate 3.56
    propylene carbonate 3.14
    n-methylformamide 42.38
    2-pentanol 1.45
    n-pentane 0.15
    1-propoxy-2-propanol 7.6
    1-methoxy-2-propyl acetate 3.26
    2-(2-methoxypropoxy) propanol 8.0
    mesitylene 0.71
    ε-caprolactone 4.11
    p-cymene 0.6
    epichlorohydrin 3.42
    1,1,1-trichloroethane 0.3
    2-aminoethanol 53.61
    morpholine-4-carbaldehyde 70.64
    sulfolane 60.72
    2,2,4-trimethylpentane 0.14
    2-methyltetrahydrofuran 2.11
    n-hexyl acetate 0.92
    isooctane 0.11
    2-(2-butoxyethoxy)ethanol 10.51
    sec-butyl acetate 0.41
    tert-butyl acetate 1.88
    decalin 0.13
    glycerin 188.51
    diglyme 19.66
    acrylic acid 11.76
    isopropyl myristate 0.51
    n-butyric acid 4.56
    acetyl acetate 1.57
    di(2-ethylhexyl) phthalate 1.01
    ethyl propionate 0.78
    nitromethane 26.48
    1,2-diethoxyethane 1.43
    benzonitrile 0.51
    trioctyl phosphate 1.04
    1-bromopropane 0.17
    gamma-valerolactone 19.26
    n-decanol 0.93
    triethyl phosphate 1.15
    4-methyl-2-pentanol 1.21
    propionitrile 0.5
    vinylene carbonate 2.75
    1,1,2-trichlorotrifluoroethane 31.6
    DMS 1.22
    cumene 0.21
    2-octanol 1.0
    2-hexanone 0.61
    octyl acetate 0.71
    limonene 0.93
    1,2-dimethoxyethane 9.15
    ethyl orthosilicate 1.05
    tributyl phosphate 0.78
    diacetone alcohol 10.59
    N,N-dimethylaniline 1.13
    acrylonitrile 1.19
    aniline 0.96
    1,3-propanediol 39.43
    bromobenzene 0.1
    dibromomethane 0.26
    1,1,2,2-tetrachloroethane 1.23
    2-methyl-cyclohexyl acetate 0.86
    tetrabutyl urea 1.77
    diisobutyl methanol 1.34
    2-phenylethanol 1.53
    styrene 0.12
    dioctyl adipate 0.9
    dimethyl sulfate 19.51
    ethyl butyrate 0.96
    methyl lactate 15.6
    butyl lactate 2.25
    diethyl carbonate 0.55
    propanediol butyl ether 9.1
    triethyl orthoformate 1.2
    p-tert-butyltoluene 0.7
    methyl 4-tert-butylbenzoate 4.12
    morpholine 8.66
    tert-butylamine 1.21
    n-dodecanol 0.75
    dimethoxymethane 17.89
    ethylene carbonate 2.0
    cyrene 16.55
    2-ethoxyethyl acetate 1.39
    2-ethylhexyl acetate 0.48
    1,2,4-trichlorobenzene 0.35
    4-methylpyridine 0.87
    dibutyl ether 0.54
    2,6-dimethyl-4-heptanol 1.34
    DEF 11.06
    dimethyl isosorbide 11.71
    tetrachloroethylene 1.71
    eugenol 5.13
    triacetin 2.43
    span 80 7.01
    1,4-butanediol 13.69
    1,1-dichloroethane 0.21
    2-methyl-1-pentanol 0.79
    methyl formate 18.39
    2-methyl-1-butanol 1.46
    n-decane 0.2
    butyronitrile 0.55
    3,7-dimethyl-1-octanol 1.07
    1-chlorooctane 0.36
    1-chlorotetradecane 0.19
    n-nonane 0.21
    undecane 0.15
    tert-butylcyclohexane 0.09
    cyclooctane 0.34
    cyclopentanol 4.33
    tetrahydropyran 1.54
    tert-amyl methyl ether 1.24
    2,5,8-trioxanonane 18.17
    1-hexene 0.1
    2-isopropoxyethanol 7.17
    2,2,2-trifluoroethanol 48.45
    methyl butyrate 1.07

    Scent© AI

1 4

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction