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Merck

94635

Sigma-Aldrich

革兰氏藏红 溶液

for microscopy

别名:

藏红 T 溶液

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About This Item

经验公式(希尔记法):
C20H19ClN4
CAS号:
分子量:
350.84
Beilstein:
3924099
MDL號碼:
分類程式碼代碼:
12171500
PubChem物質ID:
NACRES:
MA.02

等級

for microscopy

品質等級

形狀

liquid

儲存期限

limited shelf life, expiry date on the label

成份

ethanol, 10%

技術

microbe id | staining: suitable

顏色

red to very dark red

折射率

n20/D 1.339

溶解度

water: soluble at 20 °C

密度

0.986 g/mL at 20 °C

εmax

4.0 at 532 nm in 50% ethanol

抗生素活性譜

Gram-negative bacteria
Gram-positive bacteria

應用

diagnostic assay manufacturing
hematology
histology

儲存溫度

room temp

SMILES 字串

[Cl-].Cc1cc2nc3cc(C)c(N)cc3[n+](-c4ccccc4)c2cc1N

InChI

1S/C20H18N4.ClH/c1-12-8-17-19(10-15(12)21)24(14-6-4-3-5-7-14)20-11-16(22)13(2)9-18(20)23-17;/h3-11H,1-2H3,(H3,21,22);1H

InChI 密鑰

OARRHUQTFTUEOS-UHFFFAOYSA-N

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一般說明

革兰氏番红溶液,又称番红T或碱性红2,是一种即用的染色溶液,包含10%的乙醇番红。番红是一种碱性、阳离子、偶氮染料,含有一个平面的、二氨基吩嗪发色团,苯基取代基连接到一个环氮上。番红的三甲基阳离子形式是亲脂性的,而二甲基形式是弱亲水性的。它最常用于细菌学中的革兰氏染色复染,以区分革兰氏阳性菌和革兰氏阴性菌。

應用

革兰氏番红溶液已用于以下应用:
  • 作为无毒结晶紫替代品,用于生物膜形成的定量
  • 开发透明质酸可视化方法
  • 研究如何通过2-氨基噻唑改善β-内酰胺对生物膜内嵌金黄色葡萄球菌的敏感性。

特點和優勢

  • 可直接使用的 溶液。
  • 经过改进和设计,使染色可以在 染色细胞、染色架和自动染色系统中进行。

原則

革兰氏染色可区分革兰氏阳性和革兰氏阴性细菌。细菌细胞壁的胞壁质结构是颜色亲和力的基础。首先用结晶紫给细菌染色,然后用碘溶液染色,形成染料-碘复合物。这种复合物在脱色后保留在革兰氏阳性菌细胞壁的多层粘肽结构中,形成蓝紫色。 革兰氏阴性细菌的细胞壁由单层粘肽结构组成,不会保留染料-碘复合物,可吸收番红复染液,从而呈现粉红色。

象形圖

Flame

訊號詞

Warning

危險聲明

危險分類

Flam. Liq. 3

儲存類別代碼

3 - Flammable liquids

水污染物質分類(WGK)

WGK 2

閃點(°F)

114.8 °F

閃點(°C)

46 °C

個人防護裝備

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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Chikungunya virus (CHIKV) is a member of a globally distributed group of arthritogenic alphaviruses that cause weeks to months of debilitating polyarthritis/arthralgia, which is often poorly managed with current treatments. Arthritic disease is usually characterized by high levels of the
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Lauren N M Hayward et al.
Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 31(4), 567-573 (2012-11-21)
Assessment of the early stages of fracture healing via X-rays and computed tomography is limited by the low radio-opacity of cartilage. We validated a method of contrast-enhanced computed tomography (CECT) for non-destructive identification of cartilage within a healing fracture callus.

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