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重要文件

385980

Sigma-Aldrich

苯甲酸酐

≥95%

同義詞:

双(苯基羰基)醚, 苯甲酰苯甲酸, 苯甲酸酐

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About This Item

線性公式:
(C6H5CO)2O
CAS號碼:
分子量::
226.23
Beilstein:
516726
EC號碼:
MDL號碼:
分類程式碼代碼:
12352100
PubChem物質ID:
NACRES:
NA.22
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品質等級

化驗

≥95%

形狀

solid

mp

38-42 °C (lit.)

密度

1.199 g/mL at 25 °C (lit.)

官能基

anhydride
ester
phenyl

SMILES 字串

O=C(OC(=O)c1ccccc1)c2ccccc2

InChI

1S/C14H10O3/c15-13(11-7-3-1-4-8-11)17-14(16)12-9-5-2-6-10-12/h1-10H

InChI 密鑰

CHIHQLCVLOXUJW-UHFFFAOYSA-N

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應用

苯甲酸酐可以用作:
  • 由羧酸和醇类合成羧酸酯的缩合试剂。[1]
  • 大内酯合成中的偶联剂。[2]
  • 使用ZSM-5-SO3H作为催化剂酰化磺酰胺、胺、醇和酚的酰化剂。[3]

它也可以用作制备苯甲酸苄酯 [4]、亚苄基二苯甲酸酯 [5]、4-苯甲酰甲苯 [6]的试剂。

象形圖

Health hazardCorrosion

訊號詞

Danger

危險聲明

危險分類

Eye Dam. 1 - Skin Irrit. 2 - STOT RE 1 Inhalation

標靶器官

Lungs

儲存類別代碼

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

水污染物質分類(WGK)

WGK 3

閃點(°F)

235.4 °F - closed cup

閃點(°C)

113 °C - closed cup

個人防護裝備

dust mask type N95 (US), Eyeshields, Gloves


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分析證明 (COA)

Lot/Batch Number

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ZSM-5-SO3H: an efficient catalyst for acylation of sulfonamides amines, alcohols, and phenols under solvent-free conditions
Massah AR, et al.
ISRN Organic Chemistry, 2013(10), 2312-2312 (2013)
Acylations with long-chain acid anhydrides and acyl chlorides over zeolite beta
Bejblova M, et al.
Topics in Catalysis, 52(1-2), 178-184 (2009)
Formyloxyacetoxyphenylmethane and 1, 1-diacylals as versatile O-formylating and O-acylating reagents for alcohols
Chapman RSL, et al.
Tetrahedron, 74(44), 6442-6452 (2018)
TMEDA: efficient and mild catalyst for the acylation of alcohols, phenols and thiols under solvent-free condition
Kadam ST, et al.
Bull. Korean Chem. Soc., 30(5), 1071-1076 (2009)
Isamu Shiina et al.
The Journal of organic chemistry, 69(6), 1822-1830 (2004-04-03)
Various carboxylic esters are obtained at room temperature in excellent yields with high chemoselectivities from nearly equimolar amounts of carboxylic acids and alcohols using 2-methyl-6-nitrobenzoic anhydride with triethylamine by the promotion of a basic catalyst such as 4-(dimethylamino)pyridine. A variety

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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