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211761

Sigma-Aldrich

m-Cresol Purple sodium salt

Dye content 90 %

Synonym(s):

m-Cresolsulfonphthalein sodium salt

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¥7,050
5 G
¥18,900
10 G
¥32,700

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1 G
¥7,050
5 G
¥18,900
10 G
¥32,700

About This Item

Empirical Formula (Hill Notation):
C21H17NaO5S
CAS Number:
62625-31-4
Molecular Weight:
404.41
EC Number:
263-656-9
MDL number:
MFCD00010177
UNSPSC Code:
12171500
PubChem Substance ID:
24852706
NACRES:
NA.47

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form

powder

composition

Dye content, 90%

color

black

λmax

579 nm

ε (extinction coefficient)

≥15000 at 433-439 nm in H2O at 0.008 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].Cc1cc(O)ccc1\C(=C2\C=CC(=O)C=C2C)c3ccccc3S([O-])(=O)=O

InChI

1S/C21H18O5S.Na/c1-13-11-15(22)7-9-17(13)21(18-10-8-16(23)12-14(18)2)19-5-3-4-6-20(19)27(24,25)26;/h3-12,22H,1-2H3,(H,24,25,26);/q;+1/p-1/b21-18+;

InChI key

BYQJYOOKENJSNK-GOSREXKOSA-M

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General description

m-cresol purple sodium salt (MCP) is a colorimetric pH indicator dye. The dye is blue in anionic form and yellow in protonated form.[1]

Application

m-Cresol Purple sodium salt has been used to measure pH of seawater using a spectrophotometer.[2]

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

211761-VAR:
211761-BULK:
211761-10G:
211761-5G:
211761-1G:

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Certificates of Analysis (COA)

Lot/Batch Number
SHBR0974
MKCJ4720
MKBZ2034V
MKBR3556V
MKBH6858V

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