Bright
Stable
Reproducible

Illuminate life scienceEmpower your data

Qihe Biotech supplies high-quality fluorescent dyes, oligo-synthesis reagents and bioconjugation reagents for life-science research and diagnostics — with core products in stock for fast nationwide shipping.

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Emission spectra · 420–814 nm

6,200+
Supply & custom SKUs: 420–814 nm
Emission range: 120+
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Emission wavelength coverage

98 unique catalog fluorophores420–814 nm15 nm per bar

Full spectrum chart

Our proprietary SF ultra-bright dye series

Explore the SF series

Flow cytometry plot of Mouse CD4 stained with SF488, 23.08% inside the CD4+ gate — SF488

Flow cytometry plot of Mouse CD4 stained with the AF488 control, 20.59% inside the CD4+ gate — AF488 control

Flow cytometry plot of Mouse CD4 stained with SF647, 24.42% inside the CD4+ gate — SF647

Flow cytometry plot of Mouse CD4 stained with the AF647 control, 19.68% inside the CD4+ gate — AF647 control

0.4 µg/test

SF488: 23.08%
AF488 control: 20.59%

Δ +2.49 pp (CD4+ gated events · +12.1% relative)

0.08 µg/test

SF647: 24.42%
AF647 control: 19.68%

Δ +4.74 pp (CD4+ gated events · +24.1% relative)

Gating path Cells / SingletsClick a panel to view the original ↗

Mouse CD4 (GK1.5) · bars on a 0–26% full scale · click a set to bring it forward

Here to accelerate your science

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Detailed protocols and practical notes for reproducible results.

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