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8.51206

TSTU

≥97.0%, for peptide synthesis, Novabiochem®

Synonym(s):

TSTU, N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate, O-[N-Succinimidyl)-1,1,3,3-tetramethyluronium tetrafluoroborate

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Size/SKUAvailabilityPrice
25 g
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$165.00

About This Item

Empirical Formula (Hill Notation):
C9H16BF4N3O3
CAS Number:
Molecular Weight:
301.05
UNSPSC Code:
12352107
NACRES:
NA.22
MDL number:

$165.00


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Product Name

TSTU, Novabiochem®

Quality Segment

product line

Novabiochem®

assay

≥97.0%

form

powder or crystals

reaction suitability

reaction type: Coupling Reactions

manufacturer/tradename

Novabiochem®

mp

195-200 °C

application(s)

peptide synthesis

storage temp.

2-8°C

SMILES string

[B-](F)(F)(F)F.N1(C(=O)CCC1=O)O[C+](N(C)C)N(C)C

InChI

1S/C9H16N3O3.BF4/c1-10(2)9(11(3)4)15-12-7(13)5-6-8(12)14;2-1(3,4)5/h5-6H2,1-4H3;/q+1;-1

InChI key

YEBLHMRPZHNTEK-UHFFFAOYSA-N

General description

Useful reagent for the conversion of carboxylic acids to water soluble OSu esters [1, 2]. Ideal for the conversion of dyes and PEG building blocks to the corresponding active esters for coupling in aqueous media.

Associated Protocols and Technical Articles
Guide to Selection of Coupling Reagents

Literature references

[1] W. Bannwarth, et al. (1988) Helv. Chim. Acta, 71, 2085.
[2] R. Knorr, et al. (1989) Tetrahedron Lett., 30, 1927.

Analysis Note

Color (visual): white to slight yellow to beige


Appearance of substance (visual): powder to crystals


Assay: ≥ 97.0 %


Identity (IR): passes test

Legal Information

Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany

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description

Novabiochem®

description

97%

description

Novabiochem®

description

2-(1H-Benzotriazole-1-yl)-1,1,3,3-tetramethylaminium tetrafluoroborate Novabiochem®

form

powder or crystals

form

-

form

powder

form

powder

assay

≥97.0%

assay

97%

assay

≥99.0% (HPLC)

assay

≥98.0% (HPLC)

product line

Novabiochem®

product line

-

product line

Novabiochem®

product line

Novabiochem®

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

15-25°C

Quality Level

200

Quality Level

300

Quality Level

200

Quality Level

200

mp

195-200 °C

mp

198-201 °C (lit.)

mp

142-148 °C

mp

195-199 °C (decomposes)


pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Skin Sens. 1A

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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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

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  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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