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Merck
CN

60983

Kovac 吲哚试剂

suitable for microbiology

别名:

对二甲氨基苯甲醛 溶液, 按照 Kovac 方法的吲哚试剂

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关于此项目

经验公式（希尔记法）:
C9H11NO
化学文摘社编号:
100-10-7
分子量:
149.19
UNSPSC Code:
41171621
NACRES:
NA.85
PubChem Substance ID:
329759335
MDL number:
MFCD00003381
Beilstein/REAXYS Number:
4132845

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产品名称

Kovac 吲哚试剂, suitable for microbiology

InChI

1S/C9H11NO/c1-10(2)9-5-3-8(7-11)4-6-9/h3-7H,1-2H3

SMILES string

[H]C(=O)c1ccc(cc1)N(C)C

InChI key

BGNGWHSBYQYVRX-UHFFFAOYSA-N

shelf life

limited shelf life, expiry date on the label

composition

n-butanol
4-dimethylaminobenzaldehyde
hydrochloric acid

technique(s)

microbe id | specific enzyme detection: suitable

refractive index

n20/D 1.400-1.420

application(s)

agriculture
clinical testing
environmental
food and beverages
microbiology

storage temp.

2-8°C

suitability

Escherichia coli
coliforms

Quality Level

100

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相关类别

Application

Kovac′s吲哚试剂用于计数存储、解冻和熟肉饼等碎牛肉样本的大肠杆菌O157:H7。它还用于计数脱水黑水中的大肠杆菌。

Biochem/physiol Actions

Kovac′s吲哚试剂用于检测吲哚并帮助鉴定吲哚阳性和吲哚阴性微生物。在色氨酸酶存在的情况下，大肠杆菌可以将色氨酸分解为吲哚和α丙氨酸。试剂中的p-氨基苯甲醛与吲哚发生反应，生成溶于酒精、乙醚和氯仿的樱桃红络合物。建议使用不含葡萄糖的培养基和色氨酸含量高的蛋白胨进行测试。

General description

Kovac′s吲哚试剂是一种含有4-（二甲胺基）苯甲醛和盐酸的正丁醇溶液。

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Met. Corr. 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Central nervous system, Respiratory system

存储类别

3 - Flammable liquids

wgk

WGK 1

flash_point_f

96.8 °F

flash_point_c

36 °C

ppe

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

法规信息

危险化学品
易制毒化学品（3类）
此项目有

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCN3398
BCCL0925
BCCK8015
BCCM2245
BCCJ6939

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Stavros G Manios et al.
Meat science, 101, 25-32 (2014-12-03)
The effect of common handling practices (i.e., freezing, thawing and cooking) of beef patties on the survival of Salmonella spp. and Escherichia coli O157:H7, was evaluated. Inoculated ground beef was stored at -22 °C for 5 and 75 days. After
Ragnhildur Gunnarsdóttir et al.
Environmental science & technology, 46(22), 12408-12416 (2012-11-02)
Wastewater treatment in many Arctic regions is inadequate, even nonexisting. Natural freezing of wastewater in those areas may be beneficial for reduction of microorganisms. The aim of this study was to investigate the effect of long-term freezing, and repeated freezing
G L Lombard et al.
Journal of clinical microbiology, 18(3), 609-613 (1983-09-01)
Three reagents for detecting indole, Kovac, Ehrlich, and p-dimethylaminocinnamaldehyde (DMCA), were evaluated with commercial microtest systems for characterizing and identifying anaerobic bacteria. The DMCA reagent, the most sensitive of the three reagents, gave a positive reaction with 445 of 449
Jun-Min Guo et al.
Journal of agricultural and food chemistry, 58(11), 6556-6561 (2010-05-15)
A simple colorimetric method for the differentiation of indoleacetic acid (IAA) and indolebutyric acid (IBA) in plant samples is described. The color change is based upon the reaction between the auxins and p-(dimethylamino)benzaldehyde (PDAB, Ehrlich reagent) following the electrophilic substitution
G P Kushto et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 54A(6), 799-819 (1998-07-17)
Results of a normal coordinate analysis based on infrared and Raman spectra of six isotopic forms of 4-(dimethylamino)benzaldehyde are reported (DABA, DABA-CDO, DABA-13CDO, DABA-13CHO, DABA-CHO18O, and DABA-3,5-D). Cs point group symmetry has been applied and all motions except the internal
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