8.5 Oh Sweet Mary, What is that perfume you're wearing?

When discussing either cannabis flowers or concentrates in detail, the subject of odor comes up, leading to a discussion of the entourage effect of Sweet Mary's panoply of engaging smells, noted for their ability to freely penetrates double zip lock baggies and quickly permeate whole rooms or vehicles.

In Sweet Mary II we identified over 400 compounds adding to Sweet Mary's entourage, but all odors aren't created equal, so which ones are the loudest?

In a paper published by Rice and Koziel on characterizing the impact of the different volatile compounds in marijuana, they identified the dozen loudest from fresh material stuffed in a duffle bag?

Check out the engaging:  Characterizing the Smell of Marijuana by Odor Impact of Volatile Compounds, by Rice and Koziel @ PLOS.org.  

http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0144160

The following are the dozen most odiferous cannabis compounds, in order of human odor threshold pungency, as well as their physical properties.  Of note, is that the chemical composition is of greater impact than vapor pressure:

1.0       Nonanal

1.1  Physical Properties

Chemical formula

C9 H18 O

CAS

124-19-6

Molar mass

142.24166000

Appearance

colorless to pale yellow clear liquid (est)

Density

0.81900 to 0.82700 @  25.00 °C.

Melting Point

-18C/-0.4F

Boiling point

191.00 to  193.00 °C. @ 760.00 mm Hg

Flash point

145.00 °F. TCC ( 63.00 °C. )

Vapor pressure

0.532000 mm/Hg @ 25.00 °C. (est)

Solubility in water

96 mg/L @ 25 °C (exp)

Odor

waxy aldehydic rose fresh orris orange peel fatty peely

   

2.0       Decanol,

1.1  Physical Properties

Chemical formula

C10 H22 O

CAS

112-30-1

Molar mass

158.28454000

Appearance

colorless clear liquid (est)

Density

0.82500 to 0.83100 @  25.00 °C.

Melting Point

6.90 °C. @ 760.00 mm Hg

Boiling point

231.10 °C. @ 760.00 mm Hg

Flash point

180.00 °F. TCC ( 82.00 °C. )

Vapor pressure

0.008510 mm/Hg @ 25.00 °C.

Solubility in water

37 mg/L @ 25 °C (exp)

Odor

fatty waxy floral orange sweet clean watery

   

3.0       o-Cymene

1.1  Physical Properties

Chemical formula

C10 H14

CAS

527-84-4

Molar mass

134.22158000

Appearance

colorless to pale yellow clear liquid (est)

Density

0.877 g/cm3 at 25 °C (77 °F)

Melting Point

-71/-72C/-96/-98F

Boiling point

177.00 to  179.00 °C. @ 760.00 mm Hg

Flash point

123.00 °F. TCC ( 50.60 °C. ) (est)

Vapor pressure

1.500000 mm/Hg @ 25.00 °C.

Solubility in water

23.3 mg/L @ 25 °C (exp)

Odor

 
   

4.0       Isobutyraldehyde, aka 2-methyl-1-propanal

1.1  Physical Properties

Chemical formula

C4 H8 O

CAS

78-84-2

Molar mass

72.10696000

Appearance

Colorless clear liquid

Density

0.78300 to 0.78800 @  25.00 °C.

Melting Point

-65.00 °C. @ 760.00 mm Hg

Boiling point

63.00 °C. @ 760.00 mm Hg

Flash point

-18.89C/-2F

Vapor pressure

173.00 mm/Hg @ 25.00 °C.

Solubility in water

3.124e+004 mg/L @ 25 °C (est)

Odor

Fresh aldehydic floral green

   

5.0       1-Chloroacetophenone

1.1  Physical Properties

Chemical formula

C6H5COCH2Cl

CAS

532-27-4

Molar mass

154.59 g/mol

Appearance

White crystaline solid

Density

1.324 g/cm3 solid

Melting Point

58C/136.4F

Boiling point

247C/476.6F

Flash point

118C/244F

Vapor pressure

0.0054 mm Hg at 68° F (NTP, 1992)

Solubility in water

less than 1 mg/mL at 66° F (NTP, 1992)

Odor

Chemical mace, apple blossoms when dilute

   

6.0       Nerol aka 2,6-octadien-1-ol, 3,7-dimethyl-(2z)

1.1  Physical Properties

Chemical formula

C10 H18 O

CAS

106-25-2

Molar mass

154.25266000

Appearance

Colorless clear liquid (est)

Density

0.87500 to 0.88300 @  25.00 °C.

Melting Point

-15C/5F

Boiling point

225.00 to  227.00 °C. @ 760.00 mm Hg

Flash point

226.00 °F. TCC ( 107.78 °C. )

Vapor pressure

0.013000 mm/Hg @ 25.00 °C. (est)

Solubility in water

255.8 mg/L @ 25 °C (est)

Odor

sweet natural neroli citrus magnolia

   

7.0       Propylamine

1.1  Physical Properties

Chemical formula

C3 H9 N

CAS

107-10-8

Molar mass

59.11173000

Appearance

Colorless to yellow clear liquid (est)

Density

0.71400 to 0.72000 @  25.00 °C.

Melting Point

-83C/-117F

Boiling point

47.00 to  48.00 °C. @ 760.00 mm Hg

Flash point

-22.00 °F. TCC ( -30.00 °C. )

Vapor pressure

328.757996 mm/Hg @ 25.00 °C. (est)

Solubility in water

1000000 mg/L @ 20 °C (exp)

Odor

Ammoniacal

   

8.0       o-Guaiacol

1.1  Physical Properties

Chemical formula

C7 H8 O2

CAS

90-05-1

Molar mass

124.13916000

Appearance

Colorless to pale yellow clear oily liquid to solid (est)

Density

1.12300 to 1.13000 @  25.00 °C.

Melting Point

28.00 to  32.00 °C. @ 760.00 mm Hg

Boiling point

205.00 to  206.00 °C. @ 760.00 mm Hg

Flash point

180.00 °F. TCC ( 82.22 °C. )

Vapor pressure

0.179000 mm/Hg @ 25.00 °C. (est)

Solubility in water

7226 mg/L @ 25 °C (est)

Odor

Phenolic smoke spice vanilla woody

   

9.0       Linalyl acetate aka 1,6-octadien-3-ol, 3,7-dimethyl-, acetate

1.1  Physical Properties

Chemical formula

C12 H20 O2

CAS

115-95-7

Molar mass

196.28980000

Appearance

Colorless clear liquid (est)

Density

0.90300 to 0.91200 @  25.00 °C.

Melting Point

85 °C (185 °F; 358 K)

Boiling point

220.00 °C. @ 760.00 mm Hg

Flash point

185.00 °F. TCC ( 85.00 °C. )

Vapor pressure

0.116000 mm/Hg @ 25.00 °C. (est)

Solubility in water

20.12 mg/L @ 25 °C (est)

Odor

Sweet green citrus bergamot lavender woody

   

10.0     Methyl anthranilate

1.1  Physical Properties

Chemical formula

C8 H9 N O2

CAS

134-30-3

Molar mass

151.16513000

Appearance

Pale yellow to dark yellow clear liquid to solid (est)

Density

1.16100 to 1.16900 @  25.00 °C.

Melting Point

23.00 to  24.50 °C. @ 760.00 mm Hg

Boiling point

238.00 to  241.00 °C. @ 760.00 mm Hg

Flash point

220.00 °F. TCC ( 104.44 °C. )

Vapor pressure

0.016000 mm/Hg @ 25.00 °C. (est)

Solubility in water

2,850 mg/liter @ 25 deg C

Odor

Fruity grape orange flower neroli

   

11.0     Benzaldehyde

1.1  Physical Properties

Chemical formula

C7 H6 O

CAS

100-52-7

Molar mass

106.12402000

Appearance

Colorless to pale yellow clear liquid (est)

Density

1.04100 to 1.04600 @  25.00 °C.

Melting Point

-26.00 to  -25.00 °C. @ 760.00 mm Hg

Boiling point

178.00 to  179.00 °C. @ 760.00 mm Hg

Flash point

145.00 °F. TCC ( 62.78 °C. )

Vapor pressure

1.270000 mm/Hg @ 25.00 °C.

Solubility in water

0.3 g/100 mL (20 °C)

Odor

strong sharp sweet bitter almond cherry

   

12.0     Limonene

1.1  Physical Properties

Chemical formula

C10H16

CAS

5989-27-5

Molar mass

136.23 g/mole

Appearance

Colorless to pale yellow

Density

0.84

Melting Point

-40°C (-40°F)

Boiling point

176.00/178 °C. @ 760.00 mm Hg

Flash point

43.33 °C/110.00 °F

Vapor pressure

1.550000 mm/Hg @ 25.00 °C.

Solubility in water

4.581 mg/L @ 25 °C (est)

Odor

Citrus herbal terpene camphor

   

 

 


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