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Merck
CN

305715

(−)-α-Pinene

99%, optical purity ee: 97% (GLC)

Synonym(s):

(-)-alpha-Pinene, (1S)-(−)-α-Pinene, (1S,5S)-2,6,6-Trimethylbicyclo[3.1.1]hept-2-ene, (1S,5S)-2-Pinene

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About This Item

Empirical Formula (Hill Notation):
C10H16
CAS Number:
7785-26-4
Molecular Weight:
136.23
NACRES:
NA.22
PubChem Substance ID:
24858450
eCl@ss:
39011007
UNSPSC Code:
12352002
EC Number:
232-077-3
MDL number:
MFCD00064145
Beilstein/REAXYS Number:
1903790
Assay:
99%
Form:
liquid

Key Documents

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Product Name

(−)-α-Pinene, 99%, optical purity ee: 97% (GLC)

InChI key

GRWFGVWFFZKLTI-IUCAKERBSA-N

InChI

1S/C10H16/c1-7-4-5-8-6-9(7)10(8,2)3/h4,8-9H,5-6H2,1-3H3/t8-,9-/m0/s1

SMILES string

CC1=CCC2CC1C2(C)C

vapor density

4.7 (vs air)

vapor pressure

~3 mmHg ( 20 °C)

assay

99%

form

liquid

optical activity

[α]20/D −50.7°, neat

optical purity

ee: 97% (GLC)

autoignition temp.

491 °F

refractive index

n20/D 1.465 (lit.)

bp

155-156 °C (lit.)

mp

-64 °C (lit.)

density

0.855 g/mL at 25 °C

Quality Level

100

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Application

(−)-α-Pinene can be used as a precursor for the preparation of:
  • Dichloro[(1R,2S,3R,5R)-2,6,6-trimethylbicyclo[3.1.1]hept-3-yl]borane by the in situ reduction and hydroboration reaction.
  • α-Pinene oxide by epoxidation using polymer supported by a molybdenum carbonyl catalyst.
  • Diisopinocampheylborane (Ipc2BH), which is used for the asymmetric hydroboration prochiral alkenes.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 3 - Skin Irrit. 2

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

88.3 °F

flash_point_c

31.3 °C

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
SHBM1554
SHBF3288V
SHBD7941V
SHBD6397V
22396PMV

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Epoxidation of alkenes by a highly reusable and efficient polymer-supported molybdenum carbonyl catalyst
Grivani G, et al.
Catalysis Communications, 6(6), 375-378 (2005)
Versatile α-pinene-based borane reagents for asymmetric syntheses
Brown HC and Ramachandran PV
Journal of Organometallic Chemistry, 500(1-2), 1-19 (1995)
Hydroboration. 93. Convenient Conversion of Optically Pure 2-Organylapopinenes into the (2-Organylapoisopinyl) dihaloboranes Potentially Valuable for Asymmetric Synthesis via Chiral Organoboranes
Dhokte UP and Brown HC
Organometallics, 15(16), 3504-3508 (1996)

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