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205249

Sigma-Aldrich

Di-tert-butyl dicarbonate

99%, for peptide synthesis, ReagentPlus®

Synonym(s):

Boc anhydride, Di-tert-butyl pyrocarbonate

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About This Item

Linear Formula:
[(CH3)3COCO]2O
CAS Number:
Molecular Weight:
218.25
Beilstein:
1911173
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.22
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Product Name

Di-tert-butyl dicarbonate, ReagentPlus®, 99%

Quality Level

product line

ReagentPlus®

Assay

99%

form

solid or liquid

refractive index

n20/D 1.409 (lit.)

bp

56-57 °C/0.5 mmHg (lit.)

mp

23 °C (lit.)

density

0.95 g/mL at 25 °C (lit.)

application(s)

peptide synthesis

functional group

carbonate

storage temp.

2-8°C

SMILES string

CC(C)(C)OC(=O)OC(=O)OC(C)(C)C

InChI

1S/C10H18O5/c1-9(2,3)14-7(11)13-8(12)15-10(4,5)6/h1-6H3

InChI key

DYHSDKLCOJIUFX-UHFFFAOYSA-N

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Application

Aminomethyl allene was prepared by reaction of Boc propargyl amine with formaldehyde, diisopropylamine and copper bromide as part of a series of Bovine Plasma Amine Oxidase inactivators.[1]
Protection of alcohols as Boc derivatives via Lewis acid catalysis.[2]
Reagent for the introduction of the Boc protecting group.
Reagent for the preparation of Boc protected amines.[3]
Tris-Boc protected hydrazine allows preparation of Fmoc ester in a chromophoric reagent to monitor solid-phase aldehydes.[4]

Automated Boc protection and deprotection can be done using Synple Automated Synthesis Platform (SYNPLE-SC002), Boc protection cartridges ((SYNPLE-B001), (SYNPLE-B002), and Boc deprotection cartridges (SYNPLE-B011)

Warning

Hydrolyzes to t-butanol and CO2; causes internal pressure in bottle if exposed to moisture.

Legal Information

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

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

98.6 °F - closed cup

Flash Point(C)

37 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

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Simon K Shannon et al.
The Journal of organic chemistry, 69(14), 4586-4594 (2004-07-03)
A direct method for quantifying solid-phase aldehydes has been developed, using a new reagent, 4-(9-fluorenylmethyloxycarbonyl)phenylhydrazine (FmPH). The FmPH reagent was synthesized in three steps (24% overall yield) from commercially available p-hydrazinobenzoic acid. Resin-bound aldehydes reacted quantitatively with FmPH, in the
Chunhua Qiao et al.
Journal of the American Chemical Society, 126(25), 8038-8045 (2004-06-24)
Propargylic and activated allylic amines are known to inactivate the quinone-dependent plasma amine oxidases, possibly through active-site modification by the alpha,beta-unsaturated aldehyde turnover products. Although homopropargylamine (1-amino-3-butyne, 1) is a nonobvious candidate as a mechanism-based inhibitor, 1 was found to
Synthetic Communications, 23, 1443-1443 (1993)
Synlett, 2104-2104 (2006)
Hans Peter Reisenauer et al.
Angewandte Chemie (International ed. in English), 53(44), 11766-11771 (2014-09-10)
Carbonic acid (H2CO3), an essential molecule of life (e.g., as bicarbonate buffer), has been well characterized in solution and in the solid state, but for a long time, it has eluded its spectral characterization in the gas phase owing to

Questions

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  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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