Benzyl Alcohol

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  • Identifiers

    CAS number
    100-51-6

    Molecular formula
    C7H8O

    SMILES
    C1=CC=C(C=C1)CO

    Safety labels

    Irritant
    Irritant

    Retention indicies (RI)

    • DB5: 1036.71
    • Carbowax: 1861.57

  • Odor profile

    Sweet 88.34%
    Floral 84.37%
    Rose 73.92%
    Fruity 71.71%
    Balsamic 62.69%
    Almond 59.79%
    Cherry 48.37%
    Hyacinth 45.29%
    Bitter 41.22%
    Honey 40.07%

    Scent© AI

    Odor threshold>

    • Odor Threshold Low: 5.5 [mmHg]. Odor threshold from CHEMINFO
    • 5.5 ppm

  • Properties

    XLogP3-AA
    1.1

    Molecular weight
    108.14 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Melting point expt.

    • 4.5 °F (NTP, 1992)
    • -15..2 °C, 258 K, 5 °F
    • -15.2 °C
    • -15 °C
    • 4.5 °F

    Boiling point

    • 401 °F at 760 mmHg (NTP, 1992)
    • 205.3 °C, 478 K, 402 °F
    • 205.3 °C
    • 205.00 to 206.00 °C. @ 760.00 mm Hg
    • 205 °C
    • 401 °F

    Flash point est.
    89.43 ˚C

    Flash point expt.

    • 213 °F (NTP, 1992)
    • 93 °C
    • 213 °F (closed cup); 220 °F (open cup)
    • 220 °F (105 °C) (open cup)
    • 200 °F (93 °C) (closed cup)
    • 96 °C (205 °F) (Closed cup)
    • 93 °C c.c.
    • 213 °F

    Solubility expt.

    • 10 to 50 mg/mL at 70 °F (NTP, 1992)
    • 33 mg/mL, clear, colorless
    • Soluble in water, ethanol and ether
    • In water, 42,900 mg/L at 25 °C
    • In water, 35,000 mg/L at 20 °C
    • Soluble in benzene, methanol, chloroform, ethanol, ether, methanol, chloroform and acetone
    • One gram dissolves in 25 mL water; one vol dissolves in 1.5 vols of 50% ethyl alcohol; freely soluble in 50% alcohol; miscible with absolute and 94% alcohol, ether, chloroform.
    • 42.9 mg/mL at 25 °C
    • Solubility in water, g/100ml: 4
    • slightly soluble in water, soluble in organic solvents, oils
    • miscible at room temperature (in ethanol)

  • Synonyms

    • benzyl alcohol
    • phenylmethanol
    • benzenemethanol
    • 100-51-6
    • phenylcarbinol
    • benzylalcohol
    • Benzoyl alcohol
    • Benzenecarbinol
    • alpha-Toluenol
    • Phenylmethyl alcohol
    • Hydroxytoluene
    • (Hydroxymethyl)benzene
    • Phenolcarbinol
    • Alcool benzylique
    • Benzal alcohol
    • Methanol, phenyl-
    • alpha-hydroxytoluene
    • benzylic alcohol
    • Benzylicum
    • Phenylcarbinolum
    • Euxyl K 100
    • 66072-40-0
    • hydroxymethylbenzene
    • Bentalol
    • Ulesfia
    • Phenyl Methanol
    • Phenyl-Methanol
    • BENZYL-ALCOHOL
    • Alcohol bencilico
    • Caswell No. 081F
    • alcoholum benzylicum
    • Benzyl alcohol (natural)
    • FEMA No. 2137
    • Benzylalkohol
    • NCI-C06111
    • Alcool benzilico
    • Aromatic alcohol
    • Alcohol, Benzyl
    • .alpha.-Toluenol
    • Alcool benzilico [DCIT]
    • Itch-X
    • NSC 8044
    • HSDB 46
    • benzenmethanol
    • .alpha.-Hydroxytoluene
    • Benzalalcohol
    • Benzalcohol
    • CCRIS 2081
    • Aromatic primary alcohol
    • Alcoolbenzylique
    • Alcohol,benzyl
    • Alcool benzylique [INN-French]
    • Benzyl alkohol
    • Alcohol bencilico [INN-Spanish]
    • Methanol benzene
    • Alcoholum benzylicum [INN-Latin]
    • UNII-LKG8494WBH
    • Alcohol benzylicus
    • NSC-8044
    • EINECS 202-859-9
    • BnOH
    • LKG8494WBH
    • MFCD00004599
    • EPA Pesticide Chemical Code 009502
    • Hydroxymethyl resin (100-200 mesh)
    • BRN 0878307
    • Sunmorl BK 20
    • DTXSID5020152
    • CHEBI:17987
    • INS NO.1519
    • AI3-01680
    • INS-1519
    • Hydroxymethyl resin (200-400 mesh)
    • TOLUENE,ALPHA-HYDROXY
    • DTXCID70152
    • Benzyl alcohol (Benzenemethanol)
    • E-1519
    • EC 202-859-9
    • 4-06-00-02222 (Beilstein Handbook Reference)
    • 185532-71-2
    • NCGC00091865-01
    • BENZYL ALCOHOL (II)
    • BENZYL ALCOHOL [II]
    • MBN
    • 4-Hydroxymethylated polystyrene
    • BENZYL ALCOHOL (MART.)
    • BENZYL ALCOHOL [MART.]
    • Alcool benzylique (INN-French)
    • BENZYL ALCOHOL (USP-RS)
    • BENZYL ALCOHOL [USP-RS]
    • Alcohol bencilico (INN-Spanish)
    • Alcoholum benzylicum (INN-Latin)
    • BENZYL ALCOHOL (EP MONOGRAPH)
    • BENZYL ALCOHOL [EP MONOGRAPH]
    • phenylmethan-1-ol
    • CAS-100-51-6
    • Ulesfia (TN)
    • Benzyl alcohol [USAN:INN:JAN]
    • enzylalcohol
    • Protocoxil
    • phenyl carbinol
    • benzene-methanol
    • Benzyl Alcohole
    • a-Hydroxytoluene
    • a-Toluenol
    • Alcohol benzilico
    • Benzyl alcohol [INN:JAN:NF]
    • PhCH2OH
    • Bn-OH
    • Benzyl alcohol (Standard)
    • SCHEMBL147
    • Benzyl alcohol, ACS grade
    • bmse000407
    • C6H5CH2OH
    • CHEMBL720
    • WLN: Q1R
    • BENZYL ALCOHOL [MI]
    • Benzyl alcohol (JP15/NF)
    • BENZYL ALCOHOL [FCC]
    • BENZYL ALCOHOL [INN]
    • BENZYL ALCOHOL [JAN]
    • benzyl alcohol (ring-13c6)
    • BENZYL ALCOHOL [FHFI]
    • BENZYL ALCOHOL [HSDB]
    • BIDD:ER0248
    • ALCOHOL,BENZYL [VANDF]
    • BENZYL ALCOHOL [VANDF]
    • ZilactinEarly Relief Cold Sore

  • Applications

    Benzyl alcohol (CAS 100-51-6) is a mildly volatile aromatic solvent whose versatility makes it valuable in numerous sectors: it lowers viscosity and improves flow, gloss and adhesion in paints, coatings, printing inks, epoxy and polyurethane resins; in pharmaceuticals it serves as a low-toxicity bacteriostatic preservative and a solvent for poorly soluble actives in injectable, topical and otic preparations; in cosmetics it imparts a subtle floral scent, works as a humectant and fragrance carrier in creams, shampoos and perfumes; in food processing it is permitted as a flavour additive delivering almond-like notes; in analytical chemistry it is a neutral solvent for chromatography and a building block for benzyl esters and ethers; additionally, benzyl alcohol is found in paint strippers, photographic developers, wool and silk finishing baths, agricultural miticides, and corrosion-inhibiting fluids used in oil and gas production.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1181.51
    methanol 923.14
    isopropanol 979.39
    water 9.46
    ethyl acetate 722.08
    n-propanol 1037.41
    acetone 861.69
    n-butanol 812.58
    acetonitrile 928.7
    DMF 1128.63
    toluene 168.23
    isobutanol 705.64
    1,4-dioxane 1945.0
    methyl acetate 893.88
    THF 1249.84
    2-butanone 786.9
    n-pentanol 484.07
    sec-butanol 704.84
    n-hexane 59.86
    ethylene glycol 250.6
    NMP 730.16
    cyclohexane 71.43
    DMSO 1693.24
    n-butyl acetate 488.97
    n-octanol 199.06
    chloroform 1364.01
    n-propyl acetate 568.24
    acetic acid 990.81
    dichloromethane 977.25
    cyclohexanone 782.33
    propylene glycol 248.34
    isopropyl acetate 336.89
    DMAc 524.2
    2-ethoxyethanol 623.99
    isopentanol 532.7
    n-heptane 66.88
    ethyl formate 570.06
    1,2-dichloroethane 753.2
    n-hexanol 548.36
    2-methoxyethanol 944.24
    isobutyl acetate 326.1
    tetrachloromethane 242.01
    n-pentyl acetate 213.46
    transcutol 1281.22
    n-heptanol 242.45
    ethylbenzene 96.9
    MIBK 330.7
    2-propoxyethanol 748.81
    tert-butanol 899.32
    MTBE 571.81
    2-butoxyethanol 415.36
    propionic acid 1034.97
    o-xylene 107.37
    formic acid 360.61
    diethyl ether 755.26
    m-xylene 114.62
    p-xylene 117.6
    chlorobenzene 296.29
    dimethyl carbonate 219.86
    n-octane 26.54
    formamide 606.68
    cyclopentanone 931.52
    2-pentanone 559.9
    anisole 295.54
    cyclopentyl methyl ether 546.1
    gamma-butyrolactone 1162.42
    1-methoxy-2-propanol 663.16
    pyridine 880.85
    3-pentanone 365.33
    furfural 809.17
    n-dodecane 19.73
    diethylene glycol 499.71
    diisopropyl ether 166.93
    tert-amyl alcohol 546.39
    acetylacetone 448.16
    n-hexadecane 21.4
    acetophenone 240.43
    methyl propionate 522.5
    isopentyl acetate 322.17
    trichloroethylene 1232.45
    n-nonanol 171.47
    cyclohexanol 439.54
    benzyl alcohol 234.46
    2-ethylhexanol 260.83
    isooctanol 197.16
    dipropyl ether 412.63
    1,2-dichlorobenzene 223.07
    ethyl lactate 203.7
    propylene carbonate 590.67
    n-methylformamide 896.75
    2-pentanol 479.94
    n-pentane 59.54
    1-propoxy-2-propanol 514.99
    1-methoxy-2-propyl acetate 346.39
    2-(2-methoxypropoxy) propanol 273.04
    mesitylene 75.37
    ε-caprolactone 696.09
    p-cymene 71.91
    epichlorohydrin 1202.14
    1,1,1-trichloroethane 666.29
    2-aminoethanol 527.98
    morpholine-4-carbaldehyde 932.15
    sulfolane 1164.9
    2,2,4-trimethylpentane 31.0
    2-methyltetrahydrofuran 985.22
    n-hexyl acetate 276.33
    isooctane 35.04
    2-(2-butoxyethoxy)ethanol 453.92
    sec-butyl acetate 284.2
    tert-butyl acetate 349.05
    decalin 34.19
    glycerin 348.37
    diglyme 859.69
    acrylic acid 738.32
    isopropyl myristate 112.72
    n-butyric acid 1028.98
    acetyl acetate 309.88
    di(2-ethylhexyl) phthalate 87.93
    ethyl propionate 362.99
    nitromethane 1597.94
    1,2-diethoxyethane 462.78
    benzonitrile 303.73
    trioctyl phosphate 85.16
    1-bromopropane 476.62
    gamma-valerolactone 1116.5
    n-decanol 131.87
    triethyl phosphate 112.28
    4-methyl-2-pentanol 226.99
    propionitrile 751.86
    vinylene carbonate 525.99
    1,1,2-trichlorotrifluoroethane 699.6
    DMS 196.81
    cumene 72.5
    2-octanol 143.05
    2-hexanone 470.24
    octyl acetate 147.8
    limonene 116.69
    1,2-dimethoxyethane 933.24
    ethyl orthosilicate 112.87
    tributyl phosphate 93.38
    diacetone alcohol 435.16
    N,N-dimethylaniline 169.57
    acrylonitrile 868.43
    aniline 311.22
    1,3-propanediol 702.03
    bromobenzene 260.73
    dibromomethane 672.83
    1,1,2,2-tetrachloroethane 948.49
    2-methyl-cyclohexyl acetate 202.97
    tetrabutyl urea 119.71
    diisobutyl methanol 149.53
    2-phenylethanol 260.94
    styrene 133.58
    dioctyl adipate 145.91
    dimethyl sulfate 327.25
    ethyl butyrate 386.86
    methyl lactate 245.37
    butyl lactate 171.53
    diethyl carbonate 208.61
    propanediol butyl ether 284.43
    triethyl orthoformate 205.24
    p-tert-butyltoluene 73.91
    methyl 4-tert-butylbenzoate 210.26
    morpholine 1751.39
    tert-butylamine 507.04
    n-dodecanol 103.72
    dimethoxymethane 658.52
    ethylene carbonate 479.17
    cyrene 246.27
    2-ethoxyethyl acetate 275.62
    2-ethylhexyl acetate 231.8
    1,2,4-trichlorobenzene 255.82
    4-methylpyridine 601.43
    dibutyl ether 236.74
    2,6-dimethyl-4-heptanol 149.53
    DEF 594.45
    dimethyl isosorbide 420.32
    tetrachloroethylene 647.65
    eugenol 236.19
    triacetin 213.54
    span 80 254.4
    1,4-butanediol 261.5
    1,1-dichloroethane 844.73
    2-methyl-1-pentanol 325.75
    methyl formate 605.45
    2-methyl-1-butanol 486.77
    n-decane 32.81
    butyronitrile 680.0
    3,7-dimethyl-1-octanol 169.82
    1-chlorooctane 123.43
    1-chlorotetradecane 48.49
    n-nonane 33.92
    undecane 24.41
    tert-butylcyclohexane 41.59
    cyclooctane 23.93
    cyclopentanol 567.06
    tetrahydropyran 1304.64
    tert-amyl methyl ether 304.6
    2,5,8-trioxanonane 506.43
    1-hexene 239.76
    2-isopropoxyethanol 446.25
    2,2,2-trifluoroethanol 354.13
    methyl butyrate 547.13

    Scent© AI

1 4

IFRA standard 51

Recommendation
Restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 0.45 % Category 7A
Rinse-off products applied to the hair with some hand contact
 0.68 %
Category 2
Products applied to the axillae
 0.14 % Category 7B
Leave-on products applied to the hair with some hand contact
 0.68 %
Category 3
Products applied to the face/body using fingertips
 0.34 % Category 8
Products with significant anogenital exposure
 0.057 %
Category 4
Products related to fine fragrance
 2.5 % Category 9
Products with body and hand exposure, primarily rinse off
 2.2 %
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 0.64 % Category 10A
Household care products with mostly hand contact
 2.2 %
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 0.17 % Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 8.5 %
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 0.34 % Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 0.057 %
Category 5D
Baby Creams, baby Oils and baby talc
 0.057 % Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 0.057 %
Category 6
Products with oral and lip exposure
 1.5 % Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction

Botanical

Name CAS Botanical Proportion
False acacia flower (Black locust flower) 1 Robinia pseudoacacia L. (False acacia) (Black locust), fam. Leguminosae 1.81%
Almond 8013-76-1 Prunus dulcis (Miller) D.A. Webb (P. amygdalus Batsch, P. communis L.) 0.5%
Amomum villosum (China) 1g leaf Amomum villosum Lour., fam. Zingiberaceae 0.3%
Basil 2 8015-73-4 Ocimum basilicum L., fam. Lamiaceae (Labiatae) 0.63%
Blackcurrant bud 1 68606-81-5 Ribes nigrum L., fam. Grossulariaceae 0.45%
Tea leaf Camellia sinensis Kuntze, fam. Theaceae 3.3%
Cassie absolute (blossom) 8023-82-3 Acacia farnesiana (L.) Willd., fam. Mimosaceae (Leguminosae) 0.45%
Clove bud (Malagasy) 8000-34-8 Eugenia caryophyllus (Spreng.) Bullock & Harrison (E.caryophyllata Thunb.) 0.01%
False acacia headspace (Black locust) Robinia pseudoacacia L. (False acacia) (Black locust), fam. Leguminosae 1.0%
Fern, sweet 1 Comptonia peregrina (L.) Coulter, fam. Pteridophytae 0.49%
Fern, sweet 2 Comptonia peregrina (L.) Coulter, fam. Pteridophytae 0.23%
Jasmine absolute 8022-96-6 Jasminum officinale var. grandiflorum L., fam. Oleaceae 3.5%
Jasmine (Indonesia) 8022-96-6 Jasminum officinale var. grandiflorum L. (Red Flower), fam. Oleaceae 1.1%
Jasmine sambac (China) concrete Jasminum sambac (L.) Aiton, fam. Oleaceae 5.0%
Jasmine sambac (Indonesia) Jasminum sambac (L.) Aiton, fam. Oleaceae 1.25%
Jasmine sambac (Malati) concrete Jasminum sambac (L.) Aiton, fam. Oleaceae 3.0%
Jasmine sambac (Sampaquita) concrete Jasminum sambac (L.) Aiton (Sampaquita), fam. Oleaceae 0.1%
Jasmine, Picked Flower Headspace 8022-96-6 Jasminum officinale var. grandiflorum L., fam. Oleaceae 4.0%
Linden blossom bract Tilia cordata Mill. (Tilia glabra Vent.), fam. Tiliaceae 1.0%
Massoia bark Cryptocaryo massoia, fam. Lauraceae 0.4%
Michelia champaca flower absolute Michelia champaca L., fam. Magnoliaceae 0.8%
Myrtle berry (Italy) 8008-46-6 Myrtus communis L., fam. Myrtaceae 0.1%
Narcissus tazetta absolute 2 8023-75-4 Narcissus tazetta L., fam. Amaryllidaceae 2.81%
Narcissus tazetta absolute 3 8023-75-4 Narcissus tazetta L., fam. Amaryllidaceae 4.4%
Narcissus poeticus headspace 8023-75-4 Narcissus poeticus L., fam. Amaryllidaceae 21.0%
Osmanthus absolute 68917-05-5 Osmanthus fragrans (Thunb.) Lour., fam. Oleaceae 0.05%
Pittosporum tobira flower headspace Pittosporum tobira Ait., fam. Pittosporaceae 13.4%
Savory, summer (Italy) 2 8016-68-0 Satureja hortensis L., fam. Lamiaceae (Labiatae) 0.1%
Tangerine (Brazil) 1 8008-31-9 Citrus reticulata Blanco, cultivar Dancy, fam. Rutaceae 0.01%
Tangerine (Mexico) 8008-31-9 Citrus reticulata Blanco, cultivar Dancy, fam. Rutaceae 0.01%
Tangerine (USA-California) 8008-31-9 Citrus reticulata Blanco, cultivar Dancy, fam. Rutaceae 0.01%
Tangerine (USA-Florida) 1 8008-31-9 Citrus reticulata Blanco, cultivar Dancy, fam. Rutaceae 0.01%
Rosa rugosa Rosa rugosa Thunb., var. plena Regel, fam. Rosaceae 0.01%
Apple flower Malus arnoldiana (Rehd) Sarg. var. Redgold, fam. Rosaceae 8.98%
Jonquil (Japan) 8023-75-4 Narcissus jonquilla L., fam. Amaryllidaceae 0.21%
Chervil (France) 8000-44-0 Anthriscus cerefolium (L.) Hoffm. (Cerefolium sativum Lam.), fam. Apiaceae 0.1%
Etrog, peel Citrus medica L., cultivar ethrog Engl., fam. Rutaceae 0.01%
Jasmine oil (India) 8022-96-6 Jasminum officinale var. grandiflorum L., fam. Oleaceae 0.8%
Guava fruit (Egypt) 91770-12-6 Psidium guajava L., fam. Myrtaceae 0.2%
Hedychium coronarium flower (Japan) Hedychium coronarium Koenig, fam. Zingiberaceae 0.25%
Daphne genkwa Daphne genkwa Sieb. et Zucc., fam. Thymelaeaceae 0.5%
Narcissus poeticus absolute 8023-75-4 Narcissus poeticus L., fam. Amaryllidaceae 5.0%
Orris butter 8002-73-1 Iris florentina L., fam. Iridaceae 0.01%
Narcissus tazetta absolute 1 8023-75-4 Narcissus tazetta L., fam. Amaryllidaceae 11.28%
Narcissus (Japan) 1a 8023-75-4 Narcissus tazetta L. (N. poeticus L.), fam. Amarillidaceae 13.9%
Narcissus (Japan) 1b 8023-75-4 Narcissus tazetta L. (N. poeticus L.), fam. Amaryllidaceae 11.25%
Jasmine absolute (Algeria) 8022-96-6 Jasminum officinale var. grandiflorum L., fam. Oleaceae 1.22%
Jasmine absolute (Egypt) 1 8022-96-6 Jasminum officinale var. grandiflorum L., fam. Oleaceae 0.92%
Jasmine absolute (France) 1 8022-96-6 Jasminum officinale var. grandiflorum L., fam. Oleaceae 1.56%
Jasmine absolute (Italy) 1 8022-96-6 Jasminum officinale var. grandiflorum L., fam. Oleaceae 1.79%