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T9753

Sigma-Aldrich

D-Tryptophan

≥98.0% (HPLC)

Synonym(e):

(R)-2-Amino-3-(3-indolyl)-propionsäure, D-α-Amino-3-indolpropionsäure

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About This Item

Empirische Formel (Hill-System):
C11H12N2O2
CAS-Nummer:
153-94-6
Molekulargewicht:
204.23
Beilstein:
86198
EG-Nummer:
205-819-9
MDL-Nummer:
MFCD00005647
UNSPSC-Code:
12352103
PubChem Substanz-ID:
24900598
NACRES:
NA.32
Preise und Verfügbarkeit sind derzeit nicht verfügbar.

Produktbezeichnung

D-Tryptophan, ≥98.0% (HPLC)

Biologische Quelle

synthetic (organic)

Assay

≥98.0% (HPLC)

Form

powder

Methode(n)

cell culture | embryo: suitable
cell culture | mammalian: suitable

Farbe

white to off-white

mp (Schmelzpunkt)

282-285 °C (dec.) (lit.)

SMILES String

N[C@H](Cc1c[nH]c2ccccc12)C(O)=O

InChI

1S/C11H12N2O2/c12-9(11(14)15)5-7-6-13-10-4-2-1-3-8(7)10/h1-4,6,9,13H,5,12H2,(H,14,15)/t9-/m1/s1

InChIKey

QIVBCDIJIAJPQS-SECBINFHSA-N

Angaben zum Gen

human ... GRINA(2907)
mouse ... GRINA(66168)
rat ... GRINA(266668)

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Allgemeine Beschreibung

Tryptophan is one of the essential and standard amino acids present in the body. It is used by the cells to produce proteins.[1]

Anwendung

D-Tryptophan has been used to study its efficacy on dispersing biofilm in dental unit waterlines (DUWLs) in vitro.[2]
D-Tryptophan can be used for Human embryonic kidney cell (HEK-293, ATCC: CRL-1573) culture.[3]The product is a sweetener used to study the release of incretins from enteroendocrine cells triggered by sugar but not by sweeteners.[4]

Biochem./physiol. Wirkung

Low level of D-tryptophan is capable of preventing the growth of an L-tryptophan-requiring mutant of the E. coli.[5]

Sonstige Hinweise

Unnatural isomer of tryptophan.

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
MKCW0243
MKCT7977
MKCT0095
MKCS3587
MKCR3947

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Slide 1 of 4

1 of 4

Tryptophan Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1176

Tryptophan

L-Tryptophan certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Supelco

51145

L-Tryptophan

L-Tryptophan-Methylester -hydrochlorid 98%

Sigma-Aldrich

364517

L-Tryptophan-Methylester -hydrochlorid

D-Phenylalanin ≥98% (HPLC)

Sigma-Aldrich

P1751

D-Phenylalanin

C F Morris et al.
Plant physiology, 88(2), 435-440 (1988-10-01)
An endogenous germination inhibitor(s) in wheat (Triticum aestivum L.) grain has been implicated in seed dormancy and germination, but its identity and mode of action have not been elucidated. We isolated and identified an endogenous germination inhibitor in white wheat
Application of D-Amino Acids as Biofilm Dispersing Agent in Dental Unit Waterlines
Ampornaramveth RS, et al.
International journal of dentistry, 2018(4954) (2018)
Action of D-Tryptophan on E. coli
Hatanaka M
Nature, 204(4954), 202-203 (1964)
Yu Sakurai et al.
Molecular pharmaceutics, 17(4), 1397-1404 (2020-02-25)
Peptide modification is a popular strategy for developing an active targeting lipid nanoparticle (LNP). In modifying the surface of an LNP with a peptide, the sequence and structure of the peptide strongly affects the formation of the LNP. Specifically, a
Fangjie Zheng et al.
Electrophoresis, 40(16-17), 2218-2226 (2019-04-27)
Establishing a simple and accurate method for Hg2+ detection is of great importance for the environment and human health. In this work, platinum nanoparticles (Pt NPs) with different capped agents and morphologies were synthesized. It was found that Pt NPs
Alle zugehörigen Dokumente anzeigen

Questions

1–2 of 2 Questions  

  1. 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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  2. 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/449/386/product-dating-information-mk.pdf

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