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Merck

134910

Sigma-Aldrich

(1R,2S)-(-)-麻黄碱

98%

别名:

(-)-麻黄碱, (1R,2S)-(-)-α-(1-甲基氨基乙基)苄醇, (1R,2S)-(-)-2-甲氨基-1-苯丙醇, L-盐酸麻黄碱

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About This Item

线性分子式:
C6H5CH[CH(NHCH3)CH3]OH
CAS号:
分子量:
165.23
Beilstein:
2208730
EC號碼:
MDL號碼:
分類程式碼代碼:
12352116
PubChem物質ID:
NACRES:
NA.22
价格与库存信息目前不能提供

品質等級

化驗

98%

形狀

solid

光學活性

[α]21/D −41°, c = 5 in 1 M HCl

bp

255 °C (lit.)

mp

37-39 °C (lit.)

密度

1.124 g/mL at 25 °C (lit.)

官能基

amine
hydroxyl
phenyl

儲存溫度

2-8°C

SMILES 字串

CN[C@@H](C)[C@H](O)c1ccccc1

InChI

1S/C10H15NO/c1-8(11-2)10(12)9-6-4-3-5-7-9/h3-8,10-12H,1-2H3/t8-,10-/m0/s1

InChI 密鑰

KWGRBVOPPLSCSI-WPRPVWTQSA-N

一般說明

(1R,2S)-(-)-Ephedrine, a chiral β-amino alcohol, is commonly used as a chiral auxiliary in asymmetric synthesis.[1] It undergoes reduction to form (+)-methamphetamine.[2]

應用

通用手性合成子,[3]用于催化[4]以及制备光学纯亚砜[5]和噁唑烷。[6]
(1R,2S)-(-)-Ephedrine can be used in the preparation of optically active phosphine-phosphonite ligands[7] and chirally-substituted cyclopentadienyl (Cp) ligands.[8] It reacts with phosphorus trichloride to form (2R,4S,5R)-2-chloro-3,4-dimethyl-5-phenyl-1,3,2-oxazaphospholidine.[9] It can also act as a chiral resolving agent for (±)-mandelic acid.[10]

象形圖

CorrosionExclamation mark

訊號詞

Danger

危險聲明

危險分類

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1B

儲存類別代碼

8A - Combustible corrosive hazardous materials

水污染物質分類(WGK)

WGK 1

閃點(°F)

186.8 °F - closed cup

閃點(°C)

86 °C - closed cup

個人防護裝備

dust mask type N95 (US), Eyeshields, Gloves


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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其他客户在看

Slide 1 of 1

1 of 1

Synthetic Communications, 829-829 (1992)
Tetrahedron Asymmetry, 2, 1123-1123 (1991)
A novel chiral cyclopentadienyl ligand based on ephedrine
van der Zeijden AAH
Tetrahedron Asymmetry, 6(4), 913-918 (1995)
Penelope P Howards et al.
PloS one, 7(11), e50372-e50372 (2012-11-21)
Medications may be consumed periconceptionally before a woman knows she is pregnant. In this study, the authors evaluate the association of a prescription diet drug (Letigen) containing ephedrine (20 mg) and caffeine (200 mg) with spontaneous abortion (SAB) in the
(1R,2S)-Ephedrine
Soai K and Hitchcock SR
e-EROS Encyclopedia of Reagents for Organic Synthesis. null

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

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    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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