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Merck

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404411

(R,R)-(−)-N,N′-Bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamine

98%

Synonyma:

(R,R)-Jacobsen’s ligand

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Vám/Skladová položkaDostupnostCena
1 g
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1 470,00 Kč
1 102,50 Kč
5 g
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4 940,00 Kč
3 705,00 Kč

O této položce

Lineární vzorec:
[[(CH3)3C]2C6H2-2-(OH)CH=N]2C6H10
Číslo CAS:
Molekulová hmotnost:
546.83
UNSPSC Code:
12352116
NACRES:
NA.22
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
5464823

1 102,50 Kč

Ceníková cena1 470,00 KčUložit 25 %
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Quality Segment

assay

98%

form

solid

optical activity

[α]20/D −315±15°, c = 1 in methylene chloride

mp

205-207 °C (lit.)

functional group

imine

SMILES string

CC(C)(C)c1cc(\C=N\[C@@H]2CCCC[C@H]2\N=C\c3cc(cc(c3O)C(C)(C)C)C(C)(C)C)c(O)c(c1)C(C)(C)C

InChI

1S/C36H54N2O2/c1-33(2,3)25-17-23(31(39)27(19-25)35(7,8)9)21-37-29-15-13-14-16-30(29)38-22-24-18-26(34(4,5)6)20-28(32(24)40)36(10,11)12/h17-22,29-30,39-40H,13-16H2,1-12H3/b37-21+,38-22+/t29-,30-/m1/s1

InChI key

FYNXDGNCEBQLGC-LQWPWIHBSA-N

Application

Amylases from Aspergillus oryzae are used to prevent staling in the baking industry, clarify haze from fruit juices and alcoholic beverages, and produce glucose and maltose syrup products.
Versatile ligand for asymmetric catalysis. Ligand used for preparing Jacobsen′s catalyst suitable for enantioselective epoxidation of olefins lacking functional groups.

Lipases are used industrially for the resolution of chiral compounds and the transesterification production of biodiesel.

Biochem/physiol Actions

α-amylase catalyzes the hydrolysis of internal α-1,4-O-glycosidic bonds in starches to release α-anomeric sugars.
Lipases catalyze the hydrolysis of triacylglycerols into glycerol and free fatty acids.

Legal Information

Manufactured under license by Sterling Pharma Solutions Limited, using Jacobsen HKR technology.

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Tato položka
404438531960220442
description

98%

description

98%

description

-

description

98%

assay

98%

assay

98%

assay

-

assay

98%

form

solid

form

-

form

-

form

liquid

functional group

imine

functional group

imine

functional group

-

functional group

amine, isocyanate

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

optical activity

[α]20/D −315±15°, c = 1 in methylene chloride

optical activity

[α]20/D +315 to 15°, c = 1 in methylene chloride

optical activity

-

optical activity

[α]20/D −45°, c = 3.5 in toluene

mp

205-207 °C (lit.)

mp

203-206 °C (lit.)

mp

250-255 °C (lit.)

mp

-


pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Skladovací třída

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

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

    1 answer
    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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