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628-21-7

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628-21-7 Usage

Uses

1,4-Diiodobutane is used as an additive to enhance perovskite solar cell performance. It is used as a crosslinking agent for the synthesis of anion exchange membranes from cellulose.

Check Digit Verification of cas no

The CAS Registry Mumber 628-21-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,2 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 628-21:
(5*6)+(4*2)+(3*8)+(2*2)+(1*1)=67
67 % 10 = 7
So 628-21-7 is a valid CAS Registry Number.
InChI:InChI=1/C4H8I2/c5-3-1-2-4-6/h1-4H2

628-21-7 Well-known Company Product Price

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  • Alfa Aesar

  • (A16216)  1,4-Diiodobutane, 99%, stab. with copper   

  • 628-21-7

  • 25g

  • 545.0CNY

  • Detail
  • Alfa Aesar

  • (A16216)  1,4-Diiodobutane, 99%, stab. with copper   

  • 628-21-7

  • 100g

  • 1839.0CNY

  • Detail
  • Aldrich

  • (D122602)  1,4-Diiodobutane  ≥99%, contains copper as stabilizer

  • 628-21-7

  • D122602-25G

  • 544.05CNY

  • Detail
  • Aldrich

  • (D122602)  1,4-Diiodobutane  ≥99%, contains copper as stabilizer

  • 628-21-7

  • D122602-100G

  • 3,670.29CNY

  • Detail

628-21-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,4-Diiodobutane

1.2 Other means of identification

Product number -
Other names BUTANE,1,4-DIIODO

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:628-21-7 SDS

628-21-7Relevant articles and documents

Voronkov et al.

, (1975)

Continuous method for preparation of dihalogenated alkane from diol compound

-

Paragraph 0062-0068, (2020/03/16)

The invention discloses a continuous method for preparation of dihalogenated alkane from a diol compound. A diol compound and haloid acid are used as the substrate, a microchannel reactor is utilizedto synthesize dihalogenated alkane continuously. Synthesis of the dihalogenated alkane includes the steps of: inputting the diol compound and haloid acid into a mixer respectively by a metering pump at room temperature, conducting premixing, then sending the mixture into a high-temperature section of the microchannel reactor at for reaction, and controlling the reaction temperature by an externalcirculating heat exchange system; at the end of the reaction, letting the product flow out from an outlet of the microchannel reactor and enter a cooling section, letting the cooled material enter a liquid separation kettle for standing and liquid separation, and collecting an organic layer; and preheating the organic layer, then feeding the preheated organic layer into a rectifying tower by a metering pump, controlling the temperature and reflux ratio of a reboiler, and collecting fractions at a specific temperature, thus obtaining the target product in a product collecting tank. The method provided by the invention has the characteristics of high reaction efficiency, safety, environmental protection, convenience and rapidity.

Conformationally constrained κ receptor agonists: Stereoselective synthesis and pharmacological evaluation of 6,8-diazabicyclo[3.2.2]nonane Derivatives

Geiger, Christian,Zelenka, Christel,Lehmkuhl, Kirstin,Schepmann, Dirk,Englberger, Werner,Wünsch, Bernhard

supporting information; experimental part, p. 4212 - 4222 (2010/08/22)

Three sets of stereoisomeric bicyclic κ agonists with defined orientation of the pharmacophoric elements pyrrolidine and dichlorophenylacetamide were stereoselectively prepared and pharmacologically evaluated. Stereoselective reduction, reductive amination, and Mitsunobu inversions were the key steps for the establishment of the desired stereochemistry. The κ affinity decreased in the following order depending on the N-substituent: CO2CH3 > benzyl > COCH 2CH3. Bicyclic derivatives with (1S,2R,5R)-configuration showed the highest κ receptor affinity, which led to dihedral angles of 97° and 45° for the N(pyrrolidine)-C-C-N(phenylacetamide) structural element. The most potent κ agonist of this series was (+)-methyl (1S,2R,5R)-8-[2-(3,4-dichlorophenyl)acetyl]-2-(pyrrolidin-1-yl)-6, 8-diazabicyclo[3.2.2]nonane-6-carboxylate (ent-23, WMS-0121) with an K i value of 1.0 nM. ent-23 revealed high selectivity against the other classical opioid receptors and related receptor systems. In the [ 35S]GTPγS-binding assay at human κ-opioid receptors, ent-23 was proved to be a full agonist with the same EC50 value (87 nM) as the prototypical full agonist U-69,593 (EC50 = 80 nM).

Ring-Opening Iodo- and Bromosilation of Cyclic Ethers by Treatment with Iodo- and Bromotrialkylsilane Equivalents

Ohshita, Joji,Iwata, Arihiro,Kanetani, Fujio,Kunai, Atsutaka,Yamamoto, Yasushi,Matui, Chinami

, p. 8024 - 8026 (2007/10/03)

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