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Merck
CN

B42004

Methylthymol Blue sodium salt

Dye content 70 %

Synonym(s):

3,3′-Bis[N,N-di(carboxymethyl)aminomethyl]thymolsulfonephthalein sodium salt, MTB, Thymolsulfonphthalein-3′,3″-bis(methyliminodiacetic acid sodium salt)

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About This Item

Linear Formula:
C37H40N2O13SNa4
CAS Number:
1945-77-3
Molecular Weight:
844.74
UNSPSC Code:
12171500
PubChem Substance ID:
24891759
EC Number:
217-743-3
MDL number:
MFCD00148905

Key Documents

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InChI key

DIZZDZCUMBBRSG-UHFFFAOYSA-J

InChI

1S/C37H44N2O13S.4Na/c1-19(2)23-11-28(21(5)25(35(23)48)13-38(15-31(40)41)16-32(42)43)37(27-9-7-8-10-30(27)53(50,51)52-37)29-12-24(20(3)4)36(49)26(22(29)6)14-39(17-33(44)45)18-34(46)47;;;;/h7-12,19-20,48-49H,13-18H2,1-6H3,(H,40,41)(H,42,43)(H,44,45)(H,46,47);;;;/q;4*+1/p-4

SMILES string

[Na+].[Na+].[Na+].[Na+].CC(C)c1cc(c(C)c(CN(CC([O-])=O)CC([O-])=O)c1O)C2(OS(=O)(=O)c3ccccc23)c4cc(C(C)C)c(O)c(CN(CC([O-])=O)CC([O-])=O)c4C

composition

Dye content, 70%

λmax

438 nm

General description

Methylthymol Blue sodium salt is mainly used for determining the calcium content in biological samples.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKBW8134V
MKBV1390V
MKBS8716V
MKBR3196V
MKBQ1164V

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Inadequate case detection results in high levels of undiagnosed tuberculosis in sub-Saharan Africa. Data for the effect of new diagnostic tools when used for community-based intensified case finding are not available, so we investigated whether the use of sputum Xpert-MTB/RIF
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African health sciences, 17(3), 780-789 (2017-11-01)
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PLoS medicine, 16(4), e1002776-e1002776 (2019-04-06)
The prevalence of and mortality from HIV-associated tuberculosis (HIV/TB) in hospital inpatients in Africa remains unacceptably high. Currently, there is a lack of tools to identify those at high risk of early mortality who may benefit from adjunctive interventions. We
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