Chemical Identity and Composition Chemical identity Limonene occurs as the and isomers, and the racemic mixture known d l dl-limonene as dipentene. The chemical identities of these chemicals are listed in Table 4.1. There are some changes in limonene isomer Chemical Abstracts Service (CAS) numbers as follows: Chemical name Previous CAS number Superseded with 7705-13-7 5989-27-5 d-Limonene 95327-98-3 7721-11-1 5989-54-8 l-Limonene Dipentene 7705-14-8 138-86-3 Commercial grades of limonene may also be imported under the following CAS numbers: CAS number Chemical name# Terpenes and terpenoids, orange oil 68917-57-7 Terpenes and terpenoids, mixed sour and sweet orange oil 68917-58-8 Terpenes and terpenoids, grapefruit oil and shaddock oil 65996-99-8 Terpenes and terpenoids, turpentine oil, limonene fraction 68956-56-9 Hydrocarbons, terpene processing by product 8024-48-6 Orange, sweet, extract #names listed in AICS. Table 4.1 Chemical identity of limonene – Chemical Dipentene d-Limonene l-Limonene Identity CAS No.: 5989-27-5 5989-54-8 138-86-3 IUPAC Name: ()-para-Mentha-1,8-diene
Chemical Identity and Composition Chemical identity Limonene occurs as the d and l isomers, and the racemic mixture dl-limonene known as dipentene. The chemical identities of these chemicals are listed in Table 4.1. There are some changes in limonene isomer Chemical Abstracts Service (CAS) numbers as follows: Chemical name Previous CAS number Superseded with d-Limonene 7705-13-7 95327-98-3 5989-27-5 l-Limonene 7721-11-1 5989-54-8 Dipentene 7705-14-8 138-86-3 Commercial grades of limonene may also be imported under the following CAS numbers: CAS number Chemical name# Terpenes and terpenoids, orange oil 68917-57-7 Terpenes and terpenoids, mixed sour and sweet orange oil 68917-58-8 Terpenes and terpenoids, grapefruit oil and shaddock oil 65996-99-8 Terpenes and terpenoids, turpentine oil, limonene fraction 68956-56-9 Hydrocarbons, terpene processing by product 8024-48-6 Orange, sweet, extract #names listed in AICS. Table 4.1 – Chemical identity of limonene Chemical Identity d-Limonene l-Limonene Dipentene CAS No.: 5989-27-5 5989-54-8 138-86-3 IUPAC Name: ()-para-Mentha-1,8-diene
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