syringaldehyde
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IUPAC name :4-hydroxy-3,5-dimethoxybenzaldehyde
InChI :InChI=1/C9H10O4/c1-12-7-3-6(5-10)4-8(13-2)9(7)11/h3-5,11H,1-2H3
InChIKey :KCDXJAYRVLXPFO-UHFFFAOYAW
SMILES :COc1cc(cc(OC)c1O)C=O
cas number :134-96-3
(EINECS) number :205-167-5
beilstein number :0784514
fema number :4049
coe number :10340
jecfa number :1878
fl. number :05.153
molar refractivity :48.24 ± 0.3 cm3
parachor :380.6 ± 4.0 cm3
index of refraction :1.567 ± 0.02
surface tension :44.3 ± 3.0 dyne/cm
density :1.234 ± 0.06 g/cm3
polarizability :19.12 ± 0.5 10-24cm3
XlogP : 1.10
molecular weight : 182.1733000 (IUPAC)
formula :C9 H10 O4
NMR Predictor :Predict
 
 
export tariff code :unspecified
fda reg :unspecified

Suppliers :
Penta :syringaldehyde
Sigma-Aldrich-SAFC :Syringaldehyde
≥98%
Odor:  chocolate; grape; woody; smoky; wine-like

organoleptics :
odor type :green
odor strength :low
odor description :¹
at 100.00 %.  
mild plastic woody tonka sweet
odor sample from :Sigma-Aldrich Inc.
substantivity :400  Hour(s)

properties :
appearence :light green to tan crystalline powder
assay : 95.00 to 100.00 %   
halogens :Chlorine free
Food Chemicals Codex Listed :No
specific gravity :1.01000 to 1.01600 @ 25.00 °C.
pounds per gallon - calc. : 8.404 to 8.454
refractive index :1.52900 to 1.53400 @ 20.00 °C.
melting point : 110.00 to 113.00 °C. @ 760.00 mm Hg
boiling point : 192.00 to 193.00 °C. @ 14.00 mm Hg
acid value : 1.00  max.  KOH/g
flash point :> 230.00  °F.  TCC  ( > 110.00 °C. )
logP (o/w) : 0.88

safety :
most important hazard(s) :Xn - Harmful.
  R 22 - Harmful if swallowed.
R 36/38 - Irritating to skin and eyes.
S 02 - Keep out of the reach of children.
S 20/21 - When using do not eat, drink or smoke.
S 24/25 - Avoid contact with skin and eyes.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 37/39 - Wear suitable gloves and eye/face protection.
Oral Toxicity(LD50) :
  Intraperitoneal-Mouse    1000.00  mg/kg

Dermal Toxicity(LD50) :
  Not determined
Inhalation Toxicity(LC50) :
  Not determined
 

safety in use :
Maximised Survey-derived Daily Intakes (MSDI-EU) :0.74 (μg/capita/day)
modified Theoretical Added Maximum Daily Intake (mTAMDI) :1600 (μg/person/day)
Threshold of concern :1800 (μg/person/day)
Structure Class :I
 
recommendation for syringaldehyde usage levels up to :
  2.0000 % in the fragrance concentrate.
 
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA on the "LIBRARY" link.
publication number : 21
 average usual ppmaverage maximum ppm
baked goods : 12.0000060.00000
beverages(nonalcoholic) : 4.0000020.00000
beverages(alcoholic) : --
breakfast cereal : --
cheese : --
chewing gum : 15.0000075.00000
condiments / relishes : --
confectionery froastings : --
egg products : --
fats / oils : --
fish products : --
frozen dairy : 6.0000030.00000
fruit ices : --
gelatins / puddings : --
granulated sugar : --
gravies : --
hard candy : 6.0000030.00000
imitation dairy : --
instant coffee / tea : --
jams / jellies : --
meat products : --
milk products : 4.0000020.00000
nut products : --
other grains : --
poultry : --
processed fruits : --
processed vegetables : --
reconstituted vegetables : --
seasonings / flavors : --
snack foods : --
soft candy : --
soups : --
sugar substitutes : --
sweet sauces : --
 
 
Food categories according to Commission Regulation EC No. 1565/2000 (EC, 2000) in FGE.06 (EFFA, 2002a). According to the Industry the "normal" use is defined as the average of reported usages and "maximum use" is defined as the 95th percentile of reported usages (EFFA, 2002i).
Note : mg/kg = 0.001/1000 = 0.000001 = 1/1000000 = ppm.
 average usage mg/kgmaximum usage mg/kg
Dairy products, excluding products of category 02.0 (01.0) : 3.0000015.00000
Fats and oils, and fat emulsions (type water-in-oil) (02.0) : 2.0000010.00000
Edible ices, including sherbet and sorbet (03.0) : 3.0000015.00000
Processed fruit (04.1) : 2.0000010.00000
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2) : --
Confectionery (05.0) : 4.0000020.00000
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0) : 2.0000010.00000
Bakery wares (07.0) : 5.0000025.00000
Meat and meat products, including poultry and game (08.0) : 1.000005.00000
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0) : 1.000005.00000
Eggs and egg products (10.0) : --
Sweeteners, including honey (11.0) : --
Salts, spices, soups, sauces, salads, protein products, etc. (12.0) : 2.0000010.00000
Foodstuffs intended for particular nutritional uses (13.0) : 3.0000015.00000
Non-alcoholic ("soft") beverages, excl. dairy products (14.1) : 2.0000010.00000
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2) : 4.0000020.00000
Ready-to-eat savouries (15.0) : 5.0000025.00000
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0) : 2.0000010.00000

safety references :
European Food Safety Athority(efsa) :Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...
EPI System :view
Cancer Citations :Search
Toxicology Citations :Search
Env. Mutagen Info. Center :Search
Canada Domestic Sub. List :Yes
EPA Chem. Sub. Inventory : Yes
 
WGK Germany :3
 
 
 
 4-hydroxy-3,5-dimethoxybenzaldehyde
(EINECS) number :205-167-5
RTECS :CU5760000 for 134-96-3
chemidplus :000134963
EPA Substance Registry Services :134-96-3
dtp/nci :41153

references :
 4-hydroxy-3,5-dimethoxybenzaldehyde
fl. number :05.153
jecfa number :1878
NIST Chemistry WebBook :3908415086
pubchem :151814

other :
reference : Luebke, William tgsc, (2007)¹
VCF-Online: VCF Volatile Compounds in Food
synonyms :
3,5-dimethoxy-4-hydroxybenzaldehyde
3,5-dimethoxy-4-hydroxybenzene carbonal
 gallaldehyde 3,5-dimethyl ether
4-hydroxy-3,5-dimethoxybenzaldehyde

soluble in :
 alcohol

insoluble in :
 water

(odor and/or flavor) blends with :
6-amyl-alpha-pyrone
para-anisyl acetate
 coconut decanone
 coconut naphthalenone
 coumane
 coumarin
 deertongue absolute
 deertongue concrete
 deertongue oleoresin
 dehydromenthofurolactone
 dihydrocoumarin
 flouve absolute
 hay absolute
gamma-heptalactone
 immortelle absolute
 lovage oleoresin
7-methyl coumarin
 methyl coumarins
6-methyl quinoline
 myrtenal
 octahydrocoumarin
 phthalide
 pine needle absolute
 tonka bean absolute
 tonka bean oleoresin
 tonka bean resinoid
 tonka furanone
 tonka ketone
 tonka undecanone
 tonkavert
 vanillyl alcohol
 whiskey lactone

(odor and/or flavor) used in :
 almond
 hay new mown hay foin coupe
 hyacinth jacinthe
 lilac lilas syringa
 mango
 tonka
 vanilla
 woody

natural occurrence in :
barley roasted barley
beer - up to 0.7 mg/kg
brandy grape brandy
grape - up to 9.2
mango - up to 0.014 mg/kg
oak wood roasted
pineapple - 0.08 mg/kg
pork - 8.3 mg/kg
rum - up to 19.9 mg/kg
sherry - 0.035 mg/kg
vanilla bourbon vanilla - 1.9 mg/kg
whiskey - up to 8.7 mg/kg
wine red wine - up to 0.86 mg/kg
wort - up to 0.04 mg/kg



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