ScenTree, la nouvelle encyclopédie des ingrédients de parfum.

Exploring the branches of scent

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Crédits photo: ScenTree SAS

CAS number :

93-08-3

EINECS number :

202-216-2

FEMA number :

2723

JECFA number :

811

FLAVIS number :

07.013

Volatility :

Base

Appearance :

White solid

Price Range :

€€

Stability :

Stable in perfumes and diverse functional bases, except acid cleaners and bleaches. Very stable in fabric care products.

Density :

<1.5

Molecular formula :

C₁₂H₁₀O

Molecular Weight :

170.21 g/mol

Flash Point :

309.2°F (154°C)

Log P :

2.9

Fusion Point :

129.2°F (54°C)

Boiling Point :

573.8°F (301°C)

Detection Threshold :

Data not available.

Crédits photo: ScenTree SAS

Year of discovery :

Data not available.

Synthesis route :

Oranger Crystals® is synthesized from naphthalene by a Friedel-Craft acetylation, and by reacting it with chloroacetic acid for example, in the presence of aluminum chloride. The more polar the solvent used in the synthesis, the larger the quantity of beta isomer in Orange Crystals®. The alpha product is not desired.

Synthesis precursor :

Oranger Crystals® is not a precursor to the synthesis of another compound of olfactory interest.

Isomerism :

alpha-Methyl Naphthyl Ketone, also known as Oranger Liquid®, is a liquid that also has a smell similar to orange blossom. This compound is nevertheless dissociated from Oranger Crystals® in perfumery. Diphenyl Oxide is an isomer of Oranger Crystals®, but it has a very different smell as it is rosy and fruity.

Natural availability :

Oranger Crystals® is not available in its natural state.

Allergens :

This ingredient does not contain any allergen.

For more information on allergens used in perfumery, please consult our article about allergens

IFRA :

This ingredient is not restricted

Annexe I :

Maximum usage according to the product category :
Ingredients containing
Ingredient Name	CAS N°	Estimated Concentration

Restriction type :

RESTRICTION NON QRA

Cause of restriction :

PHOTOTOXICITY

Amendment :

48

Comments :

The limit only applies to applications on skin exposed to sunshine, excluding rinse-off products (please refer to Table 4 of the QRA booklet for more detailed information).

Quantitative usage limits :

Cat.1	Cat.2	Cat.3	Cat.4	Cat.5	Cat.6	Cat.7	Cat.8	Cat.9	Cat.10	Cat.11
2 %	2,59 %	10,56 %	31,67 %	16,67 %	50,72 %	5,3 %	2 %	5 %	2,5 %	Not restricted

Skin contact products		Non skin contact products
Leave on products	Rinse off products	Non skin contact products
0,2 %	X	X

Annexe I :

Some regulated synthetic ingredients are found in nature and in certain proportions in natural ingredients. This presence in nature has to be taken into account when calculating limits of use recommended by the IFRA. In case you do not know these concentrations, you can use the ones estimated by the IFRA. Here They are :

List of natural ingredients containing the material presented here
Ingredient Name	Botanical Name	CAS N°	Estimated Concentration
Genet absolute	Spartium junceum L.	129316-65-0	0,34
Mandarin oil	Citrus nobilis Lour.	8008-31-9	0,4
Mandarin oil	Citrus nobilis Lour.	8008-31-9	0,4
Mandarin oil, terpeneless	Citrus reticulata blanco	68917-20-4	10
Petitgrain mandarin oil	Citrus nobilis Lour.	8014-17-3	48

Annexe I :

Maximum usage according to the product category :
Ingredients containing
Ingredient Name	CAS N°	Estimated Concentration

Restriction type :

RESTRICTION

Cause of restriction :

PHOTOTOXICITY

Amendment :

49

Comments :

The Standard is set due to the phototoxic effects of Methyl β-naphthyl ketone. For more detailed information on the application of this Standard, please refer to the note on phototoxic ingredients in chapter 1 of the Guidance for the use of IFRA Standards.

Quantitative limit on the use :

Cat.1	Cat.2	Cat.3	Cat.4	Cat.5A	Cat.5B	Cat.5C	Cat.5D	Cat.6
0,2 %	0,2 %	0,2 %	0,2 %	0,2 %	0,2 %	0,2 %	0,2 %	0,2 %
Cat.7A	Cat.7B	Cat.8	Cat.9	Cat.10A	Cat.10B	Cat.11A	Cat.11B	Cat.12
Not restricted	0,2 %	0,2 %	Not restricted	Not restricted	0,2 %	Not restricted	0,2 %	Not restricted

Annexe I :

Some regulated synthetic ingredients are found in nature and in certain proportions in natural ingredients. This presence in nature has to be taken into account when calculating limits of use recommended by the IFRA. In case you do not know these concentrations, you can use the ones estimated by the IFRA. Here They are :

List of natural ingredients containing the material presented here
Ingredient Name	Botanical Name	CAS N°	Estimated Concentration
Clementine oil	Citrus clementina Hort. Ex Tan	93686-22-7	0,03
Genet absolute	Spartium junceum L.	90131-21-8	0,34
Mandarin oil	Citrus reticulata Blanco	8008-31-9	0,4
Mandarin oil	Citrus reticulata Blanco	8008-31-9	0,4
Mandarin oil, terpeneless	Citrus reticulata Blanco	68917-20-4	10
Petitgrain mandarin oil	Citrus reticulata Blanco	8014-17-3	48,5
Petitgrain mandarin oil terpeneless	Citrus reticulata Blanco	84929-38-4	80

To learn more about IFRA's standards : https://ifrafragrance.org/safe-use/library
To find out the specificities of each category and the ingredients prohibited by IFRA, click article about l'IFRA
ScenTree is solely responsible for the information provided here.

Uses in perfumery :

Oranger Crystals® is used in orange and white flowers notes for a warmth supply. Used in soaps and detergents for its stability. Tends to flatten formulas if overdosed.

Other names :

Methyl Naphtyl Ketone, 1-naphthalen-2-ylethanone, beta-acetonaphthalene, 2-acetonaphthanone, 2-acetylnaphthalene, cetone D, 1-(2-naphthalenyl)-ethanone, methyl 2-naphthyl ketone, MNK, 1-naphthalen-2-yl-ethanone, 2-naphthyl methyl ketone

Other comments :

Comparing it to other notes of the same type as Methyl Anthranilate or Dimethyl Anthranilate, Oranger Crystals has a distinctive almond smell.