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177989

Sigma-Aldrich

Isobutyl chloroformate

98%

Sinonimo/i:

Chloroformic acid isobutyl ester, IBCF

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25 G
CHF 37.50
100 G
CHF 47.40

CHF 37.50

Spedizione prevista il29 marzo 2025

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25 G
CHF 37.50
100 G
CHF 47.40

About This Item

Formula condensata:
ClCO2CH2CH(CH3)2
Numero CAS:
543-27-1
Peso molecolare:
136.58
Beilstein:
956590
Numero CE:
208-840-1
Numero MDL:
MFCD00000642
Codice UNSPSC:
12352100
ID PubChem:
24850706
NACRES:
NA.22
Stato:
liquid
Saggio:
98%

CHF 37.50

Spedizione prevista il29 marzo 2025

Richiedi un ordine bulk

Tensione di vapore

0.33 mmHg ( 20 °C)

Livello qualitativo

200

Saggio

98%

Stato

liquid

Indice di rifrazione

n20/D 1.407 (lit.)

P. ebollizione

128.8 °C (lit.)

Solubilità

benzene: miscible
chloroform: miscible
diethyl ether: miscible

Densità

1.053 g/mL at 25 °C (lit.)

Gruppo funzionale

chloro

Stringa SMILE

CC(C)COC(Cl)=O

InChI

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

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Descrizione generale

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]

Applicazioni

  • 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).

Avvertenze

Danger

Indicazioni di pericolo

H226,H302,H314,H330

Classi di pericolo

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

Codice della classe di stoccaggio

3 - Flammable liquids

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

96.8 °F - closed cup

Punto d’infiammabilità (°C)

36 °C - closed cup

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
MKCT4290
MKCQ7368
BCCD4305
MKCL3086
BCCB2109

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Isobutyl Chloroformate
Ray T
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
Journal of Chromatography. B, Biomedical Sciences and Applications, 617, 191-191 (1993)
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)
S Matsumura et al.
Biomedical chromatography : BMC, 9(5), 205-210 (1995-09-01)
A simple and rapid method for the determination of the 22 protein amino acids by capillary gas chromatography is described. The amino acids were converted into their N(O,S)-isobutoxycarbonyl (isoBOC) methyl ester derivatives and measured by GC with flame ionization detection
Veronika Dufková et al.
Journal of chromatography. A, 1216(49), 8659-8664 (2009-10-28)
A rapid and simple derivatization procedure has been developed for gas chromatographic determination of perfluorinated organic acids (PFCAs, C(6)-C(12)), using isobutyl chloroformate (IBCF) to convert the acids into the more volatile isobutyl esters, under catalysis by pyridine. The procedure was
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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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