MedKoo Cat#: 574277 | Name: True Blue
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Description:

WARNING: This product is for research use only, not for human or veterinary use.

True Blue is a fluorescent neuronal retrograde tracer that labels the nucleus, nucleolus, cell body, proximal dendrites, and axons of neurons. It displays excitation/emission maxima of 373/404 nm, respectively.

Chemical Structure

True Blue
True Blue
CAS#71431-30-6 (HCl)

Theoretical Analysis

MedKoo Cat#: 574277

Name: True Blue

CAS#: 71431-30-6 (HCl)

Chemical Formula: C20H18Cl2N4O2

Exact Mass: 416.0807

Molecular Weight: 417.29

Elemental Analysis: C, 57.57; H, 4.35; Cl, 16.99; N, 13.43; O, 7.67

Price and Availability

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5mg USD 595.00
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Related CAS #
71431-30-6 (HCl) 50638-24-9 (free base)
Synonym
NCI 240899, NCI-240899; NCI240899; True Blue
IUPAC/Chemical Name
2,2'-(1E)-1,2-ethenediylbis-5-benzofurancarboximidamide, dihydrochloride
InChi Key
WFZFMHDDZRBTFH-CZEFNJPISA-N
InChi Code
InChI=1S/C20H16N4O2.2ClH/c21-19(22)11-1-5-17-13(7-11)9-15(25-17)3-4-16-10-14-8-12(20(23)24)2-6-18(14)26-16;;/h1-10H,(H3,21,22)(H3,23,24);2*1H/b4-3+;;
SMILES Code
N=C(N)C1=CC=C2C(C=C(/C=C/C3=CC4=C(C=CC(C(N)=N)=C4)O3)O2)=C1.Cl.Cl
Appearance
Solid powder
Purity
>90% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
Soluble in DMSO
Shelf Life
>3 years if stored properly
Drug Formulation
This drug may be formulated in DMSO
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info

Preparing Stock Solutions

The following data is based on the product molecular weight 417.29 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
1. Bentivoglio, M., Kuypers, H.G., Catsman-Berrevoets, C.E., et al. Fuorescent retrograde neuronal labeling in rat by means of substances binding specifically to adenine-thymine rich DNA. Neurosci. Lett. 12(2-3), 235-240 (1979). 2. Kasten, F.H. Table 2.3. Fluorescent and Luminescent Probes for Biological Activity: A Practical Guide to Technology for Quantitative Real-Time Analysis 33 (1999).