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The Comparison Among D-Borneol Natural, L-Borneol Natural and Synthetic Borneol

Tangreens 2017-08-11 04:35:00 Return listback

The following form shows the details of the comparison among D-Borneol Natural (CAS# 464-43-7), L-Borneol Natural (CAS#464-45-9) and Synthetic Borneol (CAS#507-70-0).


Type /Index

D-Borneol Natural

CAS#464-43-7

L-Borneol Natural

CAS#464-45-9

Synthetic Borneol

CAS#507-70-0

Botanical source


Fresh leaves of camphor Of Cinna-momum camphora (L.) Presl

Fresh leaves of Blumea Balsamifera (L.) DC.

Chemical synthesis (turpentine a-pinene and dehydrated oxalic acid as raw material

, by the way of catalytic condensation into oxalic acid sodium ester, and then saponification by caustic soda)

Properties

White crystalline powder or flaky crystals

Fragrant, spicy taste, warm in nature; volatile in Ethanol, chloroform or ether

but water; flammable with black smoke, no burning trace

White flaky or granular crystal, crisp but not easily broken; fragrant, spicy taste, warm in nature; volatile in Ethanol, chloroform or ether

but water; flammable with black smoke, no burning trace

Colorless transparent or white translucent flaky crisp crystal, gas fragrance, spicy, cool; lit smoke, and with light flame.

volatile in Ethanol, chloroform or ether

but water; flammable with black smoke, no burning trace

Melting Point

204209℃

201205℃

205210℃

Specific rotation

+34°+38°

-36.5° -38.5°

No Standard

Identify

Dextro-Borneol(+)

Laevo-Borneol (+)

Vanillin color reaction

(+)

Nitric acid gas production reaction

(+)

Examination

Isoborneol

Not spot

≤ 5.0%

≤45.0%

Camphor

≤ 3.0%

≤ 10.0%

≤ 0.50%

pH



Pass

Involatile



≤0.035%

Moisture



Pass

Heavy metals



≤0.0005%

Arsenic salts



≤0.0002%

Purity

D-borneol ≥96.0%

L-Borneol ≥85.0%

Synthetic Borneol ≥55.0%

In conclusion:

The molecular structure of these three borneols are the same, but different optical rotation, similar pharmacy function, but because of different sources of impurities, byproducts are different.

◆  CAS No. 464-43-7: D-Borneol (Dextro), is natural borneol, extracted from the fresh leaves of camphor. Purity is higher than L-borneol and more enviromental friendly.

◆  CAS No. 464-45-7: L-Borneol (Latvo), derived from lychee plants ornithic resin processing products or from camphor transformants.

◆  CAS No. 507-70-0: Borneol (synthetic borneol), which has toxic side effects.


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【Keywords in the article】:D-borneol L-Borneol Synthetic Borneol Health Natural
【editor】:TangreensCopyright:http://www.tangreens.comReproduced please indicate the source
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