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177989

Sigma-Aldrich

Isobutyl chloroformate

98%

Synonyme(s) :

Chloroformic acid isobutyl ester, IBCF

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About This Item

Formule linéaire :
ClCO2CH2CH(CH3)2
Numéro CAS:
Poids moléculaire :
136.58
Beilstein:
956590
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352100
ID de substance PubChem :
Nomenclature NACRES :
NA.22
Forme:
liquid
Essai:
98%

35,30 $


En stockDétails


Devis pour commande en gros

Pression de vapeur

0.33 mmHg ( 20 °C)

Niveau de qualité

Essai

98%

Forme

liquid

Indice de réfraction

n20/D 1.407 (lit.)

pb

128.8 °C (lit.)

Solubilité

benzene: miscible
chloroform: miscible
diethyl ether: miscible

Densité

1.053 g/mL at 25 °C (lit.)

Groupe fonctionnel

chloro

Chaîne SMILES 

CC(C)COC(Cl)=O

InChI

1S/C5H9ClO2/c1-4(2)3-8-5(6)7/h4H,3H2,1-2H3

Clé InChI

YOETUEMZNOLGDB-UHFFFAOYSA-N

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Description générale

Isobutyl chloroformate is used as a peptide reagent. In oligonucleotide synthesis, IBCF blocks the 5′-hydroxyl function of deoxyribosides. It also serves as condensing reagent.[1]

Application

  • Preparation of a volatile derivative of taurine and application to gas chromatographic determination of urinary taurine.: Demonstrates the utility of isobutyl chloroformate in preparing volatile derivatives of taurine for gas chromatographic analysis, offering a methodological advancement in clinical biochemistry (Masuoka et al., 1989).
  • Quinazoline antifolates inhibiting thymidylate synthase: synthesis of four oligo(L-gamma-glutamyl) conjugates of N10-propargyl-5,8-dideazafolic acid and their enzyme inhibition.: This article investigates the synthesis and biological activity of quinazoline antifolates, using techniques including isobutyl chloroformate, relevant in medicinal chemistry and drug development (Pawelczak et al., 1989).
  • Coupling of peptides to protein carriers by mixed anhydride procedure.: Discusses a novel technique using isobutyl chloroformate for peptide coupling to proteins, useful in bioconjugate chemistry and vaccine development (Samokhin & Filimonov, 1985).
  • Folate analogues altered in the C9-N10 bridge region. 18. Synthesis and antitumor evaluation of 11-oxahomoaminopterin and related compounds.: Investigates the role of isobutyl chloroformate in synthesizing folate analogues for cancer research, showing its importance in therapeutic chemistry (Nair et al., 1981).

Pictogrammes

FlameSkull and crossbonesCorrosion

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

96.8 °F - closed cup

Point d'éclair (°C)

36 °C - closed cup

Équipement de protection individuelle

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


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Certificats d'analyse (COA)

Lot/Batch Number

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Journal of Chromatography. B, Biomedical Sciences and Applications, 617, 191-191 (1993)
Isobutyl Chloroformate
Ray T
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
A new family of highly potent inhibitors of microbes: synthesis and conjugation of elastin based peptides to piperazine derivative
Suhas R, et al.
International Journal of Peptide Research and Therapeutics, 18(2), 89-98 (2012)
J Wang et al.
Journal of chromatography. A, 663(1), 71-78 (1994-03-04)
The one-step ethyl chloroformate derivatization of amino acids in an aqueous medium is extended with the use of a variety of alkyl chloroformate reagents. This provides a new and convenient procedure for preparing esters with different alkoxy groups. A new
Comparative Study of Selected Coupling Reagents in Dipeptide Synthesis
Joseph Dudash, et al.
Synthetic Communications, 23, 3, 349-346 (1993)

Questions

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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?

    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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