METHYL-B-NAPHTHYL KETONE
2'-Acetonaphthone
CAS: 93-08-3
Molecular Formula: C12H10O
METHYL-B-NAPHTHYL KETONE - Names and Identifiers
| Name | 2'-Acetonaphthone |
| Synonyms | 2-Acetonaphthone Acetylnaphtalene 2'-Acetonaphthone 2-Acetonaphthanone 2-Acetylnaphthalene BETA'-ACETONAPHTHONE METHYL NAPHTHYL KETONE BETA-ACETYLNAPHTHALENE Methyl 2-naphth ketone B-NAPHTHYL METHYL KETONE METHYL-B-NAPHTHYL KETONE METHYL 2-NAPHTHYL KETONE METHYL-A-NAPHTHYL KETONE Methyl 2-naphthyl ketone 1-(2-Naphthyl)ethan-1-one METHYL-ALPHA-NAPHTHYL KETONE |
| CAS | 93-08-3 |
| EINECS | 202-216-2 |
| InChI | InChI=1/C12H10O/c1-9(13)11-7-6-10-4-2-3-5-12(10)8-11/h2-8H,1H3 |
METHYL-B-NAPHTHYL KETONE - Physico-chemical Properties
| Molecular Formula | C12H10O |
| Molar Mass | 170.21 |
| Density | 1.12g/mLat 25°C(lit.) |
| Melting Point | 52-56 °C (lit.) |
| Boling Point | 300-301 °C (lit.) |
| Flash Point | >230°F |
| JECFA Number | 811 |
| Water Solubility | insoluble |
| Solubility | 0.272g/l |
| Vapor Presure | 0.12Pa at 25℃ |
| Appearance | Fine Crystalline Powder and Chunks |
| Color | White |
| Odor | orange-blossom odor |
| BRN | 774965 |
| pKa | 0[at 20 ℃] |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | n20/D 1.628(lit.) |
| MDL | MFCD00004108 |
| Physical and Chemical Properties | Character needle-like crystals. melting point 56 ℃ boiling point 171~173 ℃(1.462kPa) soluble in ethanol, ether, acetone. Appearance: White Crystal aroma: orange flower aroma, citrus-like flavor. Boiling Point: 300 ℃,171-173 ℃/1.7kPa Melting Point: 56 ℃ flash point (closed)>95 ℃ refractive index ND20:1.465-1.469 density d420:0.914-0.919 can be used for daily chemical flavor formula, commonly used in soap, detergent flavor formula; Can be used for food flavor formula. stable in alkaline medium. |
| Use | For the preparation of daily chemical essence |
METHYL-B-NAPHTHYL KETONE - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R22 - Harmful if swallowed R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S24/25 - Avoid contact with skin and eyes. S22 - Do not breathe dust. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN3077 |
| WGK Germany | 3 |
| RTECS | DB7084000 |
| TSCA | Yes |
| HS Code | 29143900 |
| Hazard Note | Irritant |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | skn-hmn 100% FCTXAV 13,867,75 |
METHYL-B-NAPHTHYL KETONE - Reference Information
| FEMA | 2723 | METHYL BETA-NAPHTHYL KETONE |
| LogP | 2.678 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| preparation method | 2-naphthoethyl ketone can be prepared from naphthalene and acetyl chloride in the presence of aluminum trichloride according to the Friedel's reaction. |
| content analysis | accurately weigh about 1.5g of a sample, and then press "determination of aldehydes and ketones" (OT-7) in a method (hydroxylamine method) determination. The equivalence factor (e) in the calculation is taken as 85.10. |
| toxicity | ADI is not specified (FAO/WHO,1994). LD50599 mg/kg (mouse, oral). |
| usage limit | FEMA(mg/kg): soft drinks 0.50; Cold drinks 0.75; Candy 5.3; Baked goods 2.0; pudding 2.2~3.0; Gum 480~700. Moderate limits (FDA § 172.515,2000). |
| Use | GB 2760-1996: allowed flavorants. Mainly used in the preparation of grape, strawberry, citrus and orange flower flavor. β-naphthyl ethyl ketone is a raw material for organic synthesis. for the preparation of daily chemical flavor can be used in the formula of daily chemical flavor, commonly used in soap, detergent flavor formula; Can be used for food flavor formula. |
| method of production | reaction from naphthalene and acetyl chloride in the presence of aluminum trichloride as Friedel (Friedel-Cra{tsreaction) prepared. |
| category | flammable articles |
| toxicity grade | poisoning |
| Acute toxicity | oral-mouse LD50: 599 mg/kg |
| flammability hazard characteristics | flammability; Thermal decomposition releases irritating smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| extinguishing agent | dry powder, foam, sand, carbon dioxide, water mist |
Last Update：2024-04-09 21:01:54
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