Human IgG4-kappa - Isotype Control Antibody, IgG4

Cat. No.: Ab139408
AVAILABLE TO ORDER
GRADE & PURITY Carrier Free ? Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays. Recombinant ? Recombinant — produced via recombinant expression for defined sequence and consistency. Use for reproducible, animal-free proteins of known origin. Validated ? Validated grade — performance confirmed in defined applications before release. Use when you want documented assurance the reagent works as stated. ExactAb™ ? ExactAb™ — Aladdin's antibody line emphasizing precision and validated quality. Use for reliable, specificity-validated antibody applications. Low Endotoxin ? Low-endotoxin grade — endotoxin reduced to low controlled levels. Use in sensitive biological work where high endotoxin would interfere. Azide Free ? Azide-free — without sodium azide preservative. Use in conjugations, cell work, or assays where azide is toxic or inhibitory. PBS Only ? PBS-only formulation — supplied in phosphate-buffered saline with no other additives. Use when you need a clean PBS buffer free of stabilizers/carriers. ≥95%(SDS-PAGE&SEC-HPLC) See COA
Application
Flow Cytometry, Functional Assay
Host species
Human
Reactive species
Human
Isotype
Human IgG4
Clone Number
IB4
Conjugation
Unconjugated
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
100μg
Ab139408-100μg
4
$59.90
1mg
Ab139408-1mg
1
$279.90
5mg
Ab139408-5mg
1
$1,079.90
Enter a quantity for the sizes you want to add.
🧪

Why this grade

Carrier Free,Recombinant,ExactAb™,Low Endotoxin,Azide Free,Validated,PBS Only,≥95%(SDS-PAGE&SEC-HPLC),See COA Azide Free,Carrier Free,ExactAb™,Low Endotoxin,PBS Only,Recombinant,Validated for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Human IgG4-Kappa, Recombinant (IB4), Isotype Control, could be used for Flow Cytometry, Functional Assays and so on.

Specifications

Product Name
Human IgG4-kappa - Isotype Control Antibody, IgG4
Synonyms
Human IgG4 Isotype Control | Human IgG4 antibody | Human IgG4 Isotype Control antibody | Human IgG4
Specifications & Purity
Carrier Free, Recombinant, ExactAb™, Low Endotoxin, Azide Free, Validated, PBS Only, ≥95%(SDS-PAGE&SEC-HPLC), See COA
Host species
Human
Conjugation
Unconjugated
Grade
Azide Free, Carrier Free, ExactAb™, Low Endotoxin, PBS Only, Recombinant, Validated
Isotype
IgG4
Light Chain Type
kappa
SDS-PAGE
150kDa
Purification Method
Protein A purified
Concentration
See COA
Storage and Shipping
Shape
Liquid
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at 4°C short term (1-2 weeks). Store at -20°C long term (12 months). Upon receipt, it is recommended to aliquot. Avoid freeze/thaw cycle.
Images

Human IgG4-kappa (Ab139408) - Flow Cytometry
Flow Cytometry analysis of HepG2 cells labelling Human IgG4-kappa (red) with Human IgG4-kappa (Ab139408). Goat Anti-Human IgG (PE) (Ab175838) at a dilution of 1/1000 was used as the secondary antibody. Blue - Isotype control, human IgG (Ab170213). Black - Unlabelled control, cells without incubation with primary antibody.

Application
ApplicationDilution info
Functional Assay

Use at an assay dependent concentration.

Flow Cytometry

Use at an assay dependent concentration.

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

6 results found

Lot NumberCertificate TypeDateItem
ZJ25F0723753Certificate of AnalysisApr 07, 2026 Ab139408
ZJ25F0723754Certificate of AnalysisApr 07, 2026 Ab139408
ZJ25F0723755Certificate of AnalysisApr 07, 2026 Ab139408
ZJ24F0809722Certificate of AnalysisMar 16, 2026 Ab139408
ZJ24F0809723Certificate of AnalysisMar 16, 2026 Ab139408
ZJ24F0809724Certificate of AnalysisMar 16, 2026 Ab139408
Documents & Articles
Solution Calculators
Reviews

Customer Reviews

Need help choosing the grade?

Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.

View Carrier Free grade guide → View Recombinant grade guide → View Validated grade guide → View ExactAb™ grade guide → View Low Endotoxin grade guide → View Azide Free grade guide → View PBS Only grade guide →

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