Merck
CN

C6767

Sigma-Aldrich

刚果红

Dye content ≥35 %

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别名:
刚果红 4B, 棉红 B, 棉红 C, 煮大红, 直接红 28, 直接红 R, 直接红 Y
经验公式(希尔记法):
C32H22N6Na2O6S2
CAS号:
分子量:
696.66
颜色索引号:
22120
Beilstein:
3894858
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.47

形式

powder

组成

Dye content, ≥35%

technique(s)

titration: suitable

颜色

red-brown

pH值(酸碱度)

6.7 (10 g/L)

mp

>360 °C (lit.)

溶解性

H2O: 1 mg/mL

application(s)

diagnostic assay manufacturing
hematology
histology

储存温度

room temp

SMILES string

[Na+].[Na+].Nc1c(cc(c2ccccc12)S([O-])(=O)=O)\N=N\c3ccc(cc3)-c4ccc(cc4)\N=N\c5cc(c6ccccc6c5N)S([O-])(=O)=O

InChI

1S/C32H24N6O6S2.2Na/c33-31-25-7-3-1-5-23(25)29(45(39,40)41)17-27(31)37-35-21-13-9-19(10-14-21)20-11-15-22(16-12-20)36-38-28-18-30(46(42,43)44)24-6-2-4-8-26(24)32(28)34;;/h1-18H,33-34H2,(H,39,40,41)(H,42,43,44);;/q;2*+1/p-2/b37-35+,38-36+;;

InChI key

IQFVPQOLBLOTPF-HKXUKFGYSA-L

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应用

  • 刚果红已被用作定量脑组织中淀粉样沉积物的组织化学染色。
  • 它已被用作真菌新隐球菌的细胞壁抑制剂。
  • 它也被用来研究生马铃薯和油炸马铃薯细胞壁的显微结构细节。

生化/生理作用

刚果红是一种联苯胺基阴离子重氮染料。它是一种与许多淀粉样蛋白结合的组织学染料,用于淀粉样蛋白& # 946;肽聚集的定量。刚果红也可与& # 946;-右旋葡聚糖,以及含有连续& # 946;-(1 & # 8594;4)-连接的D-吡喃葡萄糖基单元和一些半纤维素半乳甘露聚糖反应。

象形图

Health hazard

警示用语:

Danger

危险声明

危险分类

Carc. 1B - Repr. 2

储存分类代码

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

个人防护装备

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges


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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

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  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. Why does the SDS for Congo Red list carcinogen as an OSHA hazard, (Section 2) but in Section 11 on carcinogenicity, it states that there is no component identified as a carcinogen?

    The reason that there is not an OSHA listing for carcinogens on most of SDS that have a hazard of a carcinogen hazard is because that section of the SDS is specifically for the OSHA regulated carcinogens, also referred to as the OSHA 13. Congo red at this time is not specifically called out  as a carcinogen by the other 3 Organizations listed (IARC, NTP, ACGIH) either. Congo red is listed by the European Classification Labeling & Packaging (CLP) Regulation (which is a pretty definitive guide for hazard classification), as a carcinogen. No other organizations have had the time to classify this material at this time. This is why it is only listed as a carcinogen in section 2 and in section 15.

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