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Merck

367044

Sigma-Aldrich

(3 S )- 顺式 -3,6-二甲基-1,4-二恶烷-2,5-二酮

98%

别名:

L-丙交酯

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About This Item

经验公式(希尔记法):
C6H8O4
CAS号:
分子量:
144.13
EC 号:
MDL编号:
UNSPSC代码:
12352005
PubChem化学物质编号:
NACRES:
NA.22
价格与库存信息目前不能提供

方案

98%

表单

crystals

旋光性

[α]20/D −285°, c = 1 in toluene

mp

92-94 °C (lit.)

官能团

ester

储存温度

2-8°C

SMILES字符串

C[C@@H]1OC(=O)[C@H](C)OC1=O

InChI

1S/C6H8O4/c1-3-5(7)10-4(2)6(8)9-3/h3-4H,1-2H3/t3-,4-/m0/s1

InChI key

JJTUDXZGHPGLLC-IMJSIDKUSA-N

应用

(3S)-顺式-3,6-二甲基-1,4-二恶烷-2,5-二酮可用于合成光学活性的含三吡啶的聚(L-丙交酯)[1]、多分散乳酸低聚物[2]、双环和三环丙交酯衍生物。[3]
用于合成可生物降解的共聚物。[4][5][6]

象形图

Exclamation mark

警示用语:

Warning

危险声明

预防措施声明

危险分类

Eye Irrit. 2

储存分类代码

13 - Non Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Jun Zhang et al.
Polymers, 11(5) (2019-05-15)
To improve the hemocompatibility of the biodegradable medical poly(ether-ester-urethane) (PEEU), containing uniform-size aliphatic hard segments that was prepared in our lab, a copolymer containing phosphorylcholine (PC) groups was blended with the PEEU. The PC-copolymer of poly(MPC-co-EHMA) (PMEH) was first obtained
Makromol. Chem., 194, 907-907 (1993)
Monodisperse enantiomeric lactic acid oligomers: preparation, characterization, and stereocomplex formation.
De Jong SJ, et al.
Macromolecules, 31(19), 6397-6402 (1998)
Chaemin Lim et al.
Colloids and surfaces. B, Biointerfaces, 153, 10-18 (2017-02-14)
Polyelectrolyte has been proposed as an efficient approach for various types of drug formulations. However, one drawback of using the conventional polyelectrolyte for drug delivery is its dissociation in in vivo conditions by counter ions due to the lack of
Journal of the American Chemical Society, 115, 11010-11010 (1993)

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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