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207772

Sigma-Aldrich

ACS reagent, ≥99.8%, solid

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About This Item

經驗公式(希爾表示法):
I2
CAS號碼:
分子量::
253.81
Beilstein:
3587194
EC號碼:
MDL號碼:
分類程式碼代碼:
12141916
eCl@ss:
38050601
PubChem物質ID:
NACRES:
NA.21
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等級

ACS reagent

品質等級

蒸汽密度

9 (vs air)

蒸汽壓力

0.31 mmHg ( 25 °C)
1 mmHg ( 38.7 °C)

化驗

≥99.8%

形狀

solid

電阻係數

1.3E15 μΩ-cm

雜質

≤0.01% nonvolatiles

bp

184 °C (lit.)

mp

113 °C (lit.)

負離子痕跡

Cl- and Br-: ≤0.005%

儲存溫度

room temp

SMILES 字串

II

InChI

1S/I2/c1-2

InChI 密鑰

PNDPGZBMCMUPRI-UHFFFAOYSA-N

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一般說明

碘在多种溶剂(二恶烷、异丁烯、对二甲苯和苯)中的介电质极化非常高。[1]

應用

是羧酸与醇缩合或酯交换合成酯的催化剂。

一种温和有效的碘催化酯化和酯交换方法
碘可用于催化:
  • 5-(4-硝基苯基)-10,15,20-三苯基卟啉的合成。[2]
  • 饱和烃氧化性C-H键的胺化。[3]
  • 用苄氧羰基(Cbz)基团保护胺。[4]
  • β-酮酸酯或2-吡啶基-β-酯与烯烃直接氧化偶合/环化,分别生成二氢呋喃和中氮茚。[5]
  • 芳香族硫氰化反应生成芳基硫氰酸酯。[6]
  • 乙酸酐与纤维素酯化,生成三乙酸纤维素。[7]
碘用于使薄层色谱(TLC)上易于显示9-溴壬酸、烯丙酯。[8]它还用于制备氧化溶液,这是合成带有3′-端硫代磷酸的寡脱氧核苷酸所必需的。[9]

訊號詞

Danger

危險分類

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Irrit. 2 - Skin Irrit. 2 - STOT RE 1 Oral - STOT SE 3

標靶器官

Respiratory system, Thyroid

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 2

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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分析證明 (COA)

Lot/Batch Number

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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/449/386/product-dating-information-mk.pdf

      Helpful?

  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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