SR Biosystem

Life Science Research Products

Rat KLK4(Kallikrein 4) ELISA Kit

Rat Kallikrein 4 (KLK4) ELISA Kit

SEA450Ra-1x48wellstestplate Cloud-Clone 1x48-wells test plate 562.42 EUR
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Rat Kallikrein 4 (KLK4) in serum, plasma and other biological fluids.

Rat Kallikrein 4 (KLK4) ELISA Kit

SEA450Ra-1x96wellstestplate Cloud-Clone 1x96-wells test plate 752.02 EUR
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Rat Kallikrein 4 (KLK4) in serum, plasma and other biological fluids.

Rat Kallikrein 4 (KLK4) ELISA Kit

SEA450Ra-5x96wellstestplate Cloud-Clone 5x96-wells test plate 3024.07 EUR
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Rat Kallikrein 4 (KLK4) in serum, plasma and other biological fluids.

Rat Kallikrein 4 (KLK4) ELISA Kit

4-SEA450Ra Cloud-Clone
  • 5612.40 EUR
  • 2965.20 EUR
  • 752.40 EUR
  • 10 plates of 96 wells
  • 5 plates of 96 wells
  • 1 plate of 96 wells
Description: Enzyme-linked immunosorbent assay based on the Double-antibody Sandwich method for detection of Rat Kallikrein 4 (KLK4) in samples from Serum, plasma and other biological fluids. with no significant corss-reactivity with analogues from other species.

Rat Kallikrein 4 (KLK4) ELISA Kit

RDR-KLK4-Ra-48Tests Reddot Biotech 48 Tests 640.8 EUR

Rat Kallikrein 4 (KLK4) ELISA Kit

RDR-KLK4-Ra-96Tests Reddot Biotech 96 Tests 890.4 EUR

Rat Kallikrein 4 (KLK4) ELISA Kit

RD-KLK4-Ra-48Tests Reddot Biotech 48 Tests 613.2 EUR

Rat Kallikrein 4 (KLK4) ELISA Kit

RD-KLK4-Ra-96Tests Reddot Biotech 96 Tests 850.8 EUR

ELISA kit for Rat KLK4 (Kallikrein 4)

ELK1983 ELK Biotech 1 plate of 96 wells 518.4 EUR
Description: A sandwich ELISA kit for detection of Kallikrein 4 from Rat in samples from blood, serum, plasma, cell culture fluid and other biological fluids.

Human Kallikrein-4(KLK4) ELISA kit

CSB-EL012455HU-24T Cusabio 1 plate of 24 wells 198 EUR
Description: Quantitativesandwich ELISA kit for measuring Human Kallikrein-4 (KLK4) in samples from serum, plasma, tissue homogenates. A new trial version of the kit, which allows you to test the kit in your application at a reasonable price.

Human Kallikrein-4(KLK4) ELISA kit

1-CSB-EL012455HU Cusabio
  • 964.80 EUR
  • 6118.80 EUR
  • 3244.80 EUR
  • 1 plate of 96 wells
  • 10 plates of 96 wells each
  • 5 plates of 96 wells each
Description: Quantitativesandwich ELISA kit for measuring Human Kallikrein-4(KLK4) in samples from serum, plasma, tissue homogenates. Now available in a cost efficient pack of 5 plates of 96 wells each, conveniently packed along with the other reagents in 5 separate kits.

Human Kallikrein 4 (KLK4) ELISA Kit

DLR-KLK4-Hu-48T DL Develop 48T 574.8 EUR
Description: A sandwich quantitative ELISA assay kit for detection of Human Kallikrein 4 (KLK4) in samples from serum, plasma or other biological fluids.

Human Kallikrein 4 (KLK4) ELISA Kit

DLR-KLK4-Hu-96T DL Develop 96T 745.2 EUR
Description: A sandwich quantitative ELISA assay kit for detection of Human Kallikrein 4 (KLK4) in samples from serum, plasma or other biological fluids.

Mouse Kallikrein 4 (KLK4) ELISA Kit

DLR-KLK4-Mu-48T DL Develop 48T 586.8 EUR
Description: A sandwich quantitative ELISA assay kit for detection of Mouse Kallikrein 4 (KLK4) in samples from serum, plasma or other biological fluids.

Mouse Kallikrein 4 (KLK4) ELISA Kit

DLR-KLK4-Mu-96T DL Develop 96T 762 EUR
Description: A sandwich quantitative ELISA assay kit for detection of Mouse Kallikrein 4 (KLK4) in samples from serum, plasma or other biological fluids.

Human Kallikrein- 4, KLK4 ELISA KIT

ELI-37253h Lifescience Market 96 Tests 988.8 EUR

Human Kallikrein 4 (KLK4) ELISA Kit

abx572101-96tests Abbexa 96 tests 943.2 EUR

Mouse Kallikrein 4 (KLK4) ELISA Kit

abx572102-96tests Abbexa 96 tests 961.2 EUR

Human Kallikrein 4 (KLK4) ELISA Kit

RDR-KLK4-Hu-48Tests Reddot Biotech 48 Tests 600 EUR

Human Kallikrein 4 (KLK4) ELISA Kit

RDR-KLK4-Hu-96Tests Reddot Biotech 96 Tests 830.4 EUR

Mouse Kallikrein 4 (KLK4) ELISA Kit

RDR-KLK4-Mu-48Tests Reddot Biotech 48 Tests 613.2 EUR

Mouse Kallikrein 4 (KLK4) ELISA Kit

RDR-KLK4-Mu-96Tests Reddot Biotech 96 Tests 850.8 EUR

Human Kallikrein 4 (KLK4) ELISA Kit

RD-KLK4-Hu-48Tests Reddot Biotech 48 Tests 573.6 EUR

Human Kallikrein 4 (KLK4) ELISA Kit

RD-KLK4-Hu-96Tests Reddot Biotech 96 Tests 794.4 EUR

Mouse Kallikrein 4 (KLK4) ELISA Kit

RD-KLK4-Mu-48Tests Reddot Biotech 48 Tests 586.8 EUR

Mouse Kallikrein 4 (KLK4) ELISA Kit

RD-KLK4-Mu-96Tests Reddot Biotech 96 Tests 812.4 EUR

Human Kallikrein 4,KLK4 ELISA Kit

YLA0264HU-48T Shanghai YL Biotech 48T 435 EUR

Human Kallikrein 4,KLK4 ELISA Kit

YLA0264HU-96T Shanghai YL Biotech 96T 562.5 EUR

Rat Kallikrein 4 (KLK4) CLIA Kit

20-abx491507 Abbexa
  • 10282.80 EUR
  • 5472.00 EUR
  • 1262.40 EUR
  • 10 × 96 tests
  • 5 × 96 tests
  • 96 tests

ELISA kit for Human Kallikrein-4 (KLK4)

KTE61897-48T Abbkine 48T 398.4 EUR
Description: Quantitative sandwich ELISA for measuring Human Kallikrein-4 (KLK4) in samples from cell culture supernatants, serum, whole blood, plasma and other biological fluids.

ELISA kit for Human Kallikrein-4 (KLK4)

KTE61897-5platesof96wells Abbkine 5 plates of 96 wells 2538 EUR
Description: Quantitative sandwich ELISA for measuring Human Kallikrein-4 (KLK4) in samples from cell culture supernatants, serum, whole blood, plasma and other biological fluids.

ELISA kit for Human Kallikrein-4 (KLK4)

KTE61897-96T Abbkine 96T 646.8 EUR
Description: Quantitative sandwich ELISA for measuring Human Kallikrein-4 (KLK4) in samples from cell culture supernatants, serum, whole blood, plasma and other biological fluids.

Rat Kallikrein 4 (KLK4) Protein

20-abx167711 Abbexa
  • 861.60 EUR
  • 343.20 EUR
  • 2698.80 EUR
  • 1028.40 EUR
  • 610.80 EUR
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Kallikrein 4/EMSP1/KLK4

E21-363 EnoGene 10ug 411.6 EUR

Kallikrein 4 (KLK4) Antibody

20-abx100976 Abbexa
  • 493.20 EUR
  • 159.60 EUR
  • 1362.00 EUR
  • 661.20 EUR
  • 376.80 EUR
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Kallikrein 4 (KLK4) Antibody

20-abx173228 Abbexa
  • 944.40 EUR
  • 493.20 EUR
  • 1 mg
  • 200 ug

Kallikrein 4 (KLK4) Antibody

20-abx173229 Abbexa
  • 1011.60 EUR
  • 526.80 EUR
  • 1 mg
  • 200 ug

Kallikrein 4 (KLK4) Antibody

20-abx320716 Abbexa
  • 526.80 EUR
  • 393.60 EUR
  • 100 ul
  • 50 ul

Kallikrein 4 (KLK4) Antibody

20-abx005091 Abbexa
  • 493.20 EUR
  • 710.40 EUR
  • 218.40 EUR
  • 376.80 EUR
  • 100 ul
  • 200 ul
  • 20 ul
  • 50 ul

Kallikrein 4 (KLK4) Antibody

20-abx210534 Abbexa
  • 493.20 EUR
  • 360.00 EUR
  • 100 ul
  • 50 ul

Kallikrein 4 (KLK4) Antibody

20-abx210535 Abbexa
  • 493.20 EUR
  • 360.00 EUR
  • 100 ul
  • 50 ul

Kallikrein 4 (KLK4) Antibody

20-abx128053 Abbexa
  • 477.60 EUR
  • 159.60 EUR
  • 1328.40 EUR
  • 644.40 EUR
  • 376.80 EUR
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Kallikrein 4 (KLK4) Antibody

20-abx121143 Abbexa
  • 360.00 EUR
  • 526.80 EUR
  • 226.80 EUR
  • 100 ul
  • 200 ul
  • 30 ul

Kallikrein 4 (KLK4) Antibody

20-abx130247 Abbexa
  • 510.00 EUR
  • 159.60 EUR
  • 1412.40 EUR
  • 693.60 EUR
  • 393.60 EUR
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Kallikrein 4 (KLK4) Antibody

abx146486-100ug Abbexa 100 ug 469.2 EUR

Recombinant Kallikrein 4 (KLK4)

4-RPA450Hu01 Cloud-Clone
  • 550.08 EUR
  • 271.20 EUR
  • 1732.80 EUR
  • 657.60 EUR
  • 1195.20 EUR
  • 444.00 EUR
  • 4152.00 EUR
  • 100 ug
  • 10ug
  • 1 mg
  • 200 ug
  • 500 ug
  • 50ug
  • 5 mg
Description: Recombinant Human Kallikrein 4 expressed in: E.coli

Recombinant Kallikrein 4 (KLK4)

4-RPA450Mu01 Cloud-Clone
  • 610.30 EUR
  • 286.80 EUR
  • 1958.59 EUR
  • 732.86 EUR
  • 1345.73 EUR
  • 483.60 EUR
  • 4716.48 EUR
  • 100 ug
  • 10ug
  • 1 mg
  • 200 ug
  • 500 ug
  • 50ug
  • 5 mg
Description: Recombinant Mouse Kallikrein 4 expressed in: E.coli

Recombinant Kallikrein 4 (KLK4)

4-RPA450Ra01 Cloud-Clone
  • 623.20 EUR
  • 290.40 EUR
  • 2006.98 EUR
  • 748.99 EUR
  • 1377.98 EUR
  • 492.00 EUR
  • 4837.44 EUR
  • 100 ug
  • 10ug
  • 1 mg
  • 200 ug
  • 500 ug
  • 50ug
  • 5 mg
Description: Recombinant Rat Kallikrein 4 expressed in: E.coli

Kallikrein 4 (KLK4) Polyclonal Antibody (Rat)

4-PAA450Ra01 Cloud-Clone
  • 291.60 EUR
  • 2948.40 EUR
  • 735.60 EUR
  • 366.00 EUR
  • 254.40 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Rat Kallikrein 4 (KLK4)

Mouse Kallikrein 4 (KLK4) Protein

20-abx067588 Abbexa
  • 844.80 EUR
  • 343.20 EUR
  • 2631.60 EUR
  • 1011.60 EUR
  • 610.80 EUR
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Human Kallikrein 4 (KLK4) Protein

20-abx166515 Abbexa
  • 777.60 EUR
  • 326.40 EUR
  • 2331.60 EUR
  • 910.80 EUR
  • 560.40 EUR
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Kallikrein 4 (KLK4) Antibody (FITC)

20-abx271160 Abbexa
  • 543.60 EUR
  • 292.80 EUR
  • 1579.20 EUR
  • 760.80 EUR
  • 410.40 EUR
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Kallikrein 4 (KLK4) Antibody (Biotin)

20-abx271426 Abbexa
  • 510.00 EUR
  • 276.00 EUR
  • 1462.80 EUR
  • 710.40 EUR
  • 393.60 EUR
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Kallikrein 4 (KLK4) Polyclonal Antibody (Rat), PE

4-PAA450Ra01-PE Cloud-Clone
  • 350.40 EUR
  • 3098.40 EUR
  • 882.00 EUR
  • 439.20 EUR
  • 232.80 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Rat Kallikrein 4 (KLK4). This antibody is labeled with PE.

Kallikrein 4 (KLK4) Polyclonal Antibody (Rat), APC

4-PAA450Ra01-APC Cloud-Clone
  • 408.00 EUR
  • 3843.60 EUR
  • 1072.80 EUR
  • 518.40 EUR
  • 260.40 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Rat Kallikrein 4 (KLK4). This antibody is labeled with APC.

Kallikrein 4 (KLK4) Polyclonal Antibody (Rat), Cy3

4-PAA450Ra01-Cy3 Cloud-Clone
  • 493.20 EUR
  • 5074.80 EUR
  • 1381.20 EUR
  • 642.00 EUR
  • 297.60 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Rat Kallikrein 4 (KLK4). This antibody is labeled with Cy3.

Kallikrein 4 (KLK4) Polyclonal Antibody (Rat), HRP

4-PAA450Ra01-HRP Cloud-Clone
  • 373.20 EUR
  • 3350.40 EUR
  • 949.20 EUR
  • 469.20 EUR
  • 246.00 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Rat Kallikrein 4 (KLK4). This antibody is labeled with HRP.

Kallikrein 4 (KLK4) Polyclonal Antibody (Rat), FITC

4-PAA450Ra01-FITC Cloud-Clone
  • 350.40 EUR
  • 3098.40 EUR
  • 882.00 EUR
  • 439.20 EUR
  • 232.80 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Rat Kallikrein 4 (KLK4). This antibody is labeled with FITC.

Kallikrein 4 (KLK4) Polyclonal Antibody (Rat), Biotinylated

4-PAA450Ra01-Biotin Cloud-Clone
  • 368.40 EUR
  • 2888.40 EUR
  • 856.80 EUR
  • 450.00 EUR
  • 260.40 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Rat Kallikrein 4 (KLK4). This antibody is labeled with Biotin.

Kallikrein 4 (KLK4) Polyclonal Antibody (Human)

4-PAA450Hu01 Cloud-Clone
  • 278.40 EUR
  • 2742.00 EUR
  • 688.80 EUR
  • 346.80 EUR
  • 249.60 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Human Kallikrein 4 (KLK4)

Kallikrein 4 (KLK4) Polyclonal Antibody (Mouse)

4-PAA450Mu01 Cloud-Clone
  • 283.20 EUR
  • 2805.60 EUR
  • 703.20 EUR
  • 352.80 EUR
  • 250.80 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Mouse Kallikrein 4 (KLK4)

Kallikrein 4 (KLK4) Polyclonal Antibody (Rat), APC-Cy7

4-PAA450Ra01-APC-Cy7 Cloud-Clone
  • 672.00 EUR
  • 7543.20 EUR
  • 2002.80 EUR
  • 894.00 EUR
  • 378.00 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Rat Kallikrein 4 (KLK4). This antibody is labeled with APC-Cy7.

Recombinant Human Kallikrein 4/KLK4 (C-6His)

C363-10ug Novoprotein 10ug 242.4 EUR
Description: Lyophilized from a 0.2 μm filtered solution of 20mM TrisHCl, 150mM NaCl, pH 8.0.

Recombinant Human Kallikrein 4/KLK4 (C-6His)

C363-1mg Novoprotein 1mg 2739.6 EUR
Description: Lyophilized from a 0.2 μm filtered solution of 20mM TrisHCl, 150mM NaCl, pH 8.0.

Recombinant Human Kallikrein 4/KLK4 (C-6His)

C363-500ug Novoprotein 500ug 1935.6 EUR
Description: Lyophilized from a 0.2 μm filtered solution of 20mM TrisHCl, 150mM NaCl, pH 8.0.

Recombinant Human Kallikrein 4/KLK4 (C-6His)

C363-50ug Novoprotein 50ug 595.2 EUR
Description: Lyophilized from a 0.2 μm filtered solution of 20mM TrisHCl, 150mM NaCl, pH 8.0.

Kallikrein 4 (KLK4) Polyclonal Antibody (Human), PE

4-PAA450Hu01-PE Cloud-Clone
  • 334.80 EUR
  • 2874.00 EUR
  • 825.60 EUR
  • 416.40 EUR
  • 225.60 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Human Kallikrein 4 (KLK4). This antibody is labeled with PE.

Kallikrein 4 (KLK4) Polyclonal Antibody (Mouse), PE

4-PAA450Mu01-PE Cloud-Clone
  • 339.60 EUR
  • 2942.40 EUR
  • 843.60 EUR
  • 423.60 EUR
  • 226.80 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Mouse Kallikrein 4 (KLK4). This antibody is labeled with PE.

Kallikrein 4 (KLK4) Polyclonal Antibody (Human), APC

4-PAA450Hu01-APC Cloud-Clone
  • 387.60 EUR
  • 3562.80 EUR
  • 1003.20 EUR
  • 490.80 EUR
  • 252.00 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Human Kallikrein 4 (KLK4). This antibody is labeled with APC.

Kallikrein 4 (KLK4) Polyclonal Antibody (Human), Cy3

4-PAA450Hu01-Cy3 Cloud-Clone
  • 468.00 EUR
  • 4700.40 EUR
  • 1287.60 EUR
  • 604.80 EUR
  • 286.80 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Human Kallikrein 4 (KLK4). This antibody is labeled with Cy3.

Kallikrein 4 (KLK4) Polyclonal Antibody (Human), HRP

4-PAA450Hu01-HRP Cloud-Clone
  • 356.40 EUR
  • 3106.80 EUR
  • 889.20 EUR
  • 445.20 EUR
  • 238.80 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Human Kallikrein 4 (KLK4). This antibody is labeled with HRP.

Kallikrein 4 (KLK4) Polyclonal Antibody (Mouse), APC

4-PAA450Mu01-APC Cloud-Clone
  • 394.80 EUR
  • 3649.20 EUR
  • 1024.80 EUR
  • 499.20 EUR
  • 254.40 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Mouse Kallikrein 4 (KLK4). This antibody is labeled with APC.

Kallikrein 4 (KLK4) Polyclonal Antibody (Mouse), Cy3

4-PAA450Mu01-Cy3 Cloud-Clone
  • 476.40 EUR
  • 4815.60 EUR
  • 1316.40 EUR
  • 615.60 EUR
  • 289.20 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Mouse Kallikrein 4 (KLK4). This antibody is labeled with Cy3.

Kallikrein 4 (KLK4) Polyclonal Antibody (Mouse), HRP

4-PAA450Mu01-HRP Cloud-Clone
  • 362.40 EUR
  • 3182.40 EUR
  • 907.20 EUR
  • 452.40 EUR
  • 240.00 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Mouse Kallikrein 4 (KLK4). This antibody is labeled with HRP.

Kallikrein 4 (KLK4) Polyclonal Antibody (Human), FITC

4-PAA450Hu01-FITC Cloud-Clone
  • 334.80 EUR
  • 2874.00 EUR
  • 825.60 EUR
  • 416.40 EUR
  • 225.60 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Human Kallikrein 4 (KLK4). This antibody is labeled with FITC.

Kallikrein 4 (KLK4) Polyclonal Antibody (Mouse), FITC

4-PAA450Mu01-FITC Cloud-Clone
  • 339.60 EUR
  • 2942.40 EUR
  • 843.60 EUR
  • 423.60 EUR
  • 226.80 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Mouse Kallikrein 4 (KLK4). This antibody is labeled with FITC.

Recombinant Human Kallikrein 4/EMSP1/KLK4 Protein

RP00838 Abclonal 10 μg 265.2 EUR

Rat Klk8( Kallikrein-8) ELISA Kit

ER0347 FN Test 96T 681.12 EUR
Description: Method of detection: Double Antibody, Sandwich ELISA;Reacts with: Rattus;Sensitivity: 0.375 ng/ml

Rat Klk8/ Kallikrein-8 ELISA Kit

E0547Ra Sunlong 1 Kit 685.2 EUR

Kallikrein 4 (KLK4) Polyclonal Antibody (Human), Biotinylated

4-PAA450Hu01-Biotin Cloud-Clone
  • 354.00 EUR
  • 2682.00 EUR
  • 805.20 EUR
  • 429.60 EUR
  • 254.40 EUR
  • 100ul
  • 10ml
  • 1ml
  • 200ul
  • 20ul
Description: A Rabbit polyclonal antibody against Human Kallikrein 4 (KLK4). This antibody is labeled with Biotin.

Rat KLK4(Kallikrein 4) ELISA Kit