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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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Giulia Lombardi et al.
PloS one, 12(4), e0176186-e0176186 (2017-04-22)
Diagnosis of pulmonary (PTB) and extra-pulmonary tuberculosis (EPTB) in smear-negative patients can be difficult. We assessed retrospectively the performance of Xpert MTB/RIF system (Xpert, Cepheid) in diagnosing smear-negative tuberculosis (TB), which represents the most common form of TB in a
Rewa K Choudhary et al.
Journal of acquired immune deficiency syndromes (1999), 80(2), 174-181 (2018-11-07)
The blood monocyte-to-lymphocyte ratio (MLR) is associated with active tuberculosis (TB) in adults but has not been evaluated as a TB diagnostic biomarker in HIV-infected children in whom respiratory sampling is difficult. In a cohort of HIV-infected hospitalized Kenyan children
Rapid colorimetric determination of calcium in biologic fluids with methylthymol blue.
Gindler EM and King JD
American Journal of Clinical Pathology, 58, 376-382 (1972)
Zi Ye et al.
Microbiome, 6(1), 135-135 (2018-08-06)
Behcet's disease (BD) is a recalcitrant, multisystemic inflammatory disease that can lead to irreversible blindness. Microbial agents have been considered to contribute to the pathogenesis of this disease, but the underlying mechanisms remain unclear. In this study, we investigated the
Albert Y H Lim et al.
BMC pulmonary medicine, 18(1), 85-85 (2018-05-24)
Non-tuberculous mycobacteria (NTM) infection is an increasing problem worldwide. The epidemiology of NTM in most Asian countries is unknown. This study investigated the epidemiology, and clinical profile of inpatients in whom NTM was isolated from various anatomical sites in a
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