Name | 2,6-dimethyl-5-hepten-1-al |
Synonyms | melonal nsc78450 ai3-33278 Dimethylheptenal 2,6-dimethylhept- 2,6-dimethyl-5-heptena 2,6-dimethylhept-5-enal ,6-Dimethyl hept-5-en-1-al 2,6-dimethylhept-5-en-1-al 2,6-dimethyl-5-hepten-1-al (2R)-2,6-dimethylhept-5-enal (2S)-2,6-dimethylhept-5-enal |
CAS | 106-72-9 |
EINECS | 203-427-2 |
InChI | InChI=1/C9H16O/c1-8(2)5-4-6-9(3)7-10/h5,7,9H,4,6H2,1-3H3/t9-/m1/s1 |
InChIKey | YGFGZTXGYTUXBA-UHFFFAOYSA-N |
Molecular Formula | C9H16O |
Molar Mass | 140.22 |
Density | 0.879g/mLat 25°C |
Boling Point | 116-124°C100mm Hg(lit.) |
Flash Point | 141°F |
JECFA Number | 349 |
Water Solubility | Soluble in alcohol, paraffin oil. Insoluble in water. |
Vapor Presure | 2.39hPa at 25℃ |
Appearance | Liquid |
Specific Gravity | 0.879 |
Color | Light orange to Yellow to Green |
Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
Sensitive | Air Sensitive |
Refractive Index | n20/D 1.444(lit.) |
MDL | MFCD00006981 |
Physical and Chemical Properties | Light yellow to yellow oily liquid with strong fresh muskmelon fragrance. Not very stable. Flash point of 62 deg C, boiling point of 116~124 deg C (13.3kPa). Soluble in ethanol, propylene glycol and non-volatile oil, insoluble in glycerol and water. |
Use | For daily use and food flavor |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
UN IDs | 1987 |
WGK Germany | 2 |
RTECS | MJ8797000 |
TSCA | Yes |
HS Code | 29121900 |
Hazard Note | Irritant |
Hazard Class | 3 |
Packing Group | III |
Toxicity | Both the acute oral LD50 value in rats and the acute dermal LD50 value in rabbits exceeded 5 g/kg (Levenstein, 1974). |
FEMA | 2389 | 2,6-DIMETHYL-5-HEPTENAL |
LogP | 3.4 |
NIST chemical information | Information provided by: webbook.nist.gov (external link) |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
content analysis | accurately weigh about 1g of sample. Then according to aldehyde content determination method (OT-7-1). The equivalent factor (e) in the calculation is 14.01. |
toxicity | GRAS(FEMA). |
usage limit | FEMA(mg/kg): soft drink 2.8; Cold drink 1.7; Candy 8.4; Baked food 19; Pudding 0.02~10; Glue |
use | GB 2760-96 specifies edible spices allowed to be used. Mainly used to prepare melon, cucumber and tropical fruit flavors. Used as daily and edible essence Used as daily and edible essence. |
Production method | It is formed by local hydrogenation of isobutyraldehyde and β-methylbutyraldehyde after condensation. |