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860891

Bromocresol Purple sodium salt

Name: Bromocresol Purple sodium salt
Brand: ALDRICH

indicator grade, Dye content 90 %

동의어(들):

5′,5″-Dibromo-o-cresolsulfonphthalein sodium salt

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제품정보 (DICE 배송 시 비용 별도)

실험식(Hill 표기법):

C₂₁H₁₅Br₂NaO₅S

CAS 번호:

62625-30-3

Molecular Weight:

562.20

NACRES:

NA.47

PubChem Substance ID:

24888522

UNSPSC Code:

12171500

EC Number:

263-655-3

MDL number:

MFCD00148896

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도움 문의

속성

grade

indicator grade

Quality Level

200

form

powder

composition

Dye content, 90%

technique(s)

titration: suitable

color

brown to very dark brown, to Very Dark Red

visual transition interval

5.2-6.8, yellow to purple

mp

255 °C (dec.) (lit.)

λ_max

379 nm, 585 nm (2nd)

ε (extinction coefficient)

≥47000 at 587-591 nm in 0.1 M NaOH, ≥7000 at 375-381 nm in 0.1 M NaOH

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].Cc1cc(cc(Br)c1O)C2(OS(=O)(=O)c3ccccc23)c4cc(C)c([O-])c(Br)c4

InChI

1S/C21H16Br2O5S.Na/c1-11-7-13(9-16(22)19(11)24)21(14-8-12(2)20(25)17(23)10-14)15-5-3-4-6-18(15)29(26,27)28-21;/h3-10,24-25H,1-2H3;/q;+1/p-1

InChI key

WNOIORUCCYNQPE-UHFFFAOYSA-M

설명

General description

Bromocresol Purple, also known as dibromo-o-cresolsulfonphthalein, is an acidic dye and belongs to the phthalein and sulphonphthalein dyes group. The dye color changes from yellow to violet at pH 5.2-6.8. The monosodium salt of the dye is 8% soluble in water and 2% in ethanol. Bromocresol Purple, under alkaline conditions, forms a hydrophilic, moderately sized dianion that is purple.

Application

Bromocresol Purple is widely used as a vital stain to trace fluid diffusion in the lymphatic system. In addition, the dye is suitable to differentiate dead or live yeast cells. As a pH indicator, Bromocresol Purple is used in microbial culture media, both broth, and agar. In analytical experiments, e.g., to stain carbonic anhydrase isoenzyme on cellulose acetate electrophoresis membranes, bromocresol purple is used.

pictograms

GHS07

signalword

Warning

hcodes

H315,H319,H335

pcodes

P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

저장 등급

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c