Code | Name (Mutations) | Lineage | WHO Nomenclature |
C19S1-G231OH | Recombinant 2019-nCoV Spike protein S1 (A67V, Δ69-70, T95I, G142D/Δ143-145, Δ211/L212I, ins214EPE, G339D, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R, N501Y, Y505H, T547K, D614G, H655Y, N679K, P681H) was expressed in CHO cells using a C-terminal His- tag | B.1.1.529 | Omicron |
C19SD-G231OH | Recombinant 2019-nCoV Spike protein S1 subunit, RBD (G339D, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R, N501Y, Y505H) was expressed in CHO cells using a C-terminal his tag. | B.1.1.529 | Omicron |
Code | Name | Lineage | WHO Nomenclature |
C19S1-G241F | 2019-nCoV Spike protein S1, Fc Tag | Wild Type | |
C19S1-G241H | 2019-nCoV Spike protein S1, HIS Tag | Wild Type | |
C19S2-G241F | 2019-nCoV Spike protein S2, Fc Tag | Wild Type | |
C19SD-G241D | 2019-nCoV Spike protein RBD, HRP conjugated | Wild Type | |
C19SD-G241F | 2019-nCoV Spike protein RBD, Fc Tag | Wild Type | |
C19SD-G241H | 2019-nCoV Spike protein RBD, HIS Tag | Wild Type | |
C19NP-G242H | 2019-nCoV Nucleocapsid (N) Protein | Wild Type | |
C19NSD-G242H | 2019-nCoV Spike RBD-N Protein Chimera | Wild Type | |
C19S1-G232H | 2019-nCoV Spike protein S1 (P681H) | B.1.1.7 | Alpha |
C19SD-G231H | 2019-nCoV Spike protein RBD (N501Y) | B.1.1.7 | Alpha |
C19SD-G231D | 2019-nCoV Spike protein RBD (N501Y), HRP conjugated | B.1.1.7 | Alpha |
C19S1-G239H | 2019-nCoV Spike protein S1 (Δ69-70 Δ144 N501Y A570D D614G P681H) | B.1.1.7 | Alpha |
C19S1-G238H | 2019-nCoV Spike protein S1 (K417N, E484K, N501Y, D614G) | B.1.351 | Beta |
C19SD-G237H | 2019-nCoV spike protein RBD (E484K) | B.1.351 | Beta |
C19SD-G236H | 2019-nCoV Spike protein RBD (K417N) | B.1.351 | Beta |
C19SD-G232H | 2019-nCoV Spike protein RBD (K417N, E484K, N501Y) (Beta variant) | B.1.351 | Beta |
C19SD-G232D | 2019-nCoV Spike protein RBD (K417N, E484K, N501Y), HRP conjugated | B.1.351 | Beta |
C19SD-G235H | 2019-nCoV Spike protein RBD (L452R) | B.1.427/B.1.429 | Epsilon |
C19SD-G231DH | 2019-nCoV spike protein RBD (L452R, E484Q) | B.1.617.1 | Kappa |
C19SD-G231DD | 2019-nCoV Spike protein RBD (L452R, E484Q), HRP conjugated | B.1.617.1 | Kappa |
C19SD-G231CH | 2019-nCoV Spike protein RBD (E484Q) | B.1.617.1 | Kappa |
C19SD-G231FH | 2019-nCoV Spike Protein RBD (L452R, T478K) | B.1.617.2 | Delta |
C19S1-G231FH | 2019-nCoV Spike protein S1 (T19R, ∆157-158, L452R, T478K, D614G, P681R) | B.1.617.2 | Delta |
C19SD-G231FD | 2019-nCoV Spike protein RBD (L452R, T478K), HRP conjugated | B.1.617.2 | Delta |
C19S1-G231DH | 2019-nCoV spike protein S1 (∆Y145, ∆H146, E484K, D614G) | B.1.618 | |
C19SD-G231AD | 2019-nCoV Spike protein RBD (K417T, E484K, N501Y), HRP conjugated | P.1 | Gamma |
C19SD-G239H | 2019-nCoV Spike protein RBD (K417T) | P.1 | Gamma |
C19SD-G231AH | 2019-nCoV Spike protein RBD (K417T, E484K and N501Y) | P.1 | Gamma |
C19SD-G231LH | 2019-nCoV Spike protein RBD (K417N, L452R, T478K) | ||
C19SD-G233H | 2019-nCoV Spike protein RBD (N439K) | ||
C19SD-G231EH | 2019-nCoV Spike protein RBD (N440K) | ||
C19SD-G231BH | 2019-nCoV Spike protein RBD (S477G) | ||
C19SD-G238H | 2019-nCoV Spike protein RBD (S477N) | ||
C19SD-G234H | 2019-nCoV Spike protein RBD (Y453F) | ||
C19S1-G231BH | 2019-nCoV Spike protein S1 (Δ69-70, N439K, D614G) | ||
C19S1-G231AH | 2019-nCoV Spike protein S1 (Δ69-70, Y453F, D614G) | ||
C19S1-G231H | 2019-nCoV Spike protein S1 (D614G) |
Code | Name | Size | Sample type |
N02101-b | COVID-19 antigen test | 1000 tests | Oral/Nasal swabs |
N02092-B | COVID-19 IgG / IgM antibody detection kit (finger prick) | 1000 tests | Human blood, serum or plasma |
8100805 | Sample Collection Kit for Throat Sampling | 100 preps | Throat swabs |
8100812 | Sample Collection Kit for Nasal Sampling | 100 preps | Nasal swabs |
Code | Name |
C19NP-60H | Anti 2019-nCoV N-Protein hIgG Antibody |
C19NP-60DH | Anti 2019-nCoV N-Protein hIgG Antibody, HRP conjugated |
C19S1-60H | Anti 2019-nCoV Spike Protein hIgG Antibody |
C19S1-61H | Anti 2019-nCoV Spike Protein hIgG Antibody |
C19S1-61MH | Anti 2019-nCoV Spike Protein mIgG Antibody |
C19S1-A60H | Anti 2019-nCoV Spike Protein hIgA Antibody |
C19S1-60DH | Anti 2019-nCoV Spike Protein hIgG Antibody, HRP conjugated |
C19S1-M60H | Anti 2019-nCoV Spike Protein hIgM Antibody |
Simultaneously binds to anti-S and anti-N protein antibody with high affinity
RBD-N protein chimera was added into the wells coated with anti 2019-nCoV N-protein hIgG antibody (C19NP-60H). Binding was detected by incubating the wells with HRP-conjugated anti 2019-nCoV Spike Protein hIgG antibody (C19S1-60DH).
Detection with Anti-SARS-CoV-2 S Protein Antibody
Detection with Anti-SARS-CoV-2 N Protein Antibody
ELISA plates were coated with recombinant SARS-CoV-2 proteins. HRP-conjugated specific antibodies were added to detect the binding. RBD-N chimera protein demonstrated specific binding to anti-S and anti-N antibody with higher affinity comparing to individual S or N protein.
The sensitivity of ELISA using new antibody pair is significantly increased comparing to previous assay.
The ELISA using new antibody pair has limit of detection (LOD) at picomole level.
Code | Name |
C19SD-876 | 2019-nCoV S1 Protein ELISA Kit |
C19S1-877 | 2019-nCoV S1 Human IgG ELISA Kit |
C19S1-M877 | 2019-nCoV S1 Human IgM ELISA Kit |
C19S1-P877 | 2019-nCoV S1 Human IgG-IgA-IgM ELISA Kit |
C19S1-A877 | 2019-nCoV S1 Human IgA ELISA Kit |
C19NS1-P877 | 2019-nCoV N-S1 Human IgG-IgA-IgM ELISA Kit |
C19NS1-A877 | 2019-nCoV N-S1 Human IgA ELISA Kit |
C19NS1-M877 | 2019-nCoV N-S1 Human IgM ELISA Kit |
C19NS1-877 | 2019-nCoV N-S1 Human IgG ELISA Kit |
C19S1-876 | 2019-nCoV High Sensitivity S1 Protein ELISA KIT |
C19SD-N887 | 2019-nCoV Neutralization ELISA KIT |
SignalChem’s SARS-CoV-2 ELISA KITS are effective research and detection tools to study the novel 2019-nCoV and its
molecular interactions with the human host cells. Designed following the principles of ELISA (Enzyme Linked Immunosorbent Assay), our kits can be used for the detection and quantification of SARS-CoV-2 viral protein, human anti-SARS-CoV-2 immunoglobulins, and for research & development of diagnostics and therapeutics against the SARS-CoV-2 virus.
Name | Catalog Number | CAS Registration Number | Molecular Formula | Purity | Chemical Name |
Bafilomycin A1 | V115-905 | 88899-55-2 | C35H58O9 | >98% (HPLC); NMR (conforms) | (-)-Bafilomycin A1 |
Camostat Mesilate | S565-906 | 59721-29-8 | C20H22N4O5 • CH3SO3H | >98% (HPLC); NMR (Conforms) | 4-(2-(2-(dimethylamino)-2-oxoethoxy)-2-oxoethyl)phenyl 4-guanidinobenzoate, methanesul-fonic acid salt; FOY-305; Foipan |
Captopril | A51-906 | 62571-86-2 | C9H15NO3S | >98% (HPLC, TLC); NMR (conforms) | (2S)-1-(3-mercapto-2-methyl-propionyl)-L-proline |
Chloroquine phosphate | C119-905 | 50-63-5 | C18H26ClN3 · 2H3PO4 | >98% (TLC); NMR (conforms) | N4-(7-Chloro-4-quinolinyl)-N1,N1-dimethyl-1,4-pentanediamine, diphosphate |
Hydroxychloroquine | T860-905 | 747-36-4 | C18H26ClN3O · H2SO4 | >98% (TLC); NMR (conforms) | 7-Chloro-4-[4-(N-ethyl-N-b-hydroxyethylamino)-1-methylbutylamino]quinoline, sulfate. |
Losartan potassium | S35-908 | 124750-99-8 | C22H22ClN6O · K | >99% (TLC); NMR (conforms) | 2-Butyl-4-chloro-1-{[2′-(1H-tetrazol-5-yl)(1,1′-biphenyl)-4-yl]methyl}-1H-imidazole-5-methanol, potassium salt (DUP-753) |
Mycophenolic acid | I23-905 | 24280-93-1 | C17H20O6 | >98% (HPLC); NMR (conforms) | 6-(4-Hydroxy-6-methoxy-7-methyl-3-oxo-5-phthalanyl)-4-methyl-4-hexanoic acid; NSC129185 |
Niclosamide | S54-900 | 50-65-7 | C13H8Cl2N2O4 | >98% (TLC); NMR (conforms) | 5-Chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide |
Nitazoxanide | P312-905 | 55981-09-4 | C12H9N3O5S | >98% (HPLC); NMR (conforms) | O-[N-(5-Nitrothiazol-2-yl)carbamoyl]phenyl acetate; NTZ |
RVX-208 | B17-905B | 1044870-39-4 | C20H22N2O5 | >98% (TLC); NMR (conforms) | 2-[4-(2-hydroxyethoxy)-3,5-dimethylphenyl]-5,7-dimethoxy-4(3H)-quinazolinone |
Valinomycin | V113-908 | 2001-95-8 | C54H90N6O18 | >98% (HPLC); NMR (conforms) | Cyclo(D-α-hydroxyisovaleryl-D-valyl-L-lactoyl-L-valyl-D-α-hydroxyisovaleryl-D-valyl-L-lactoyl-L-valyl-D-α-hydroxyisovaleryl-D-valyl-L-lactoyl-L-valyl) |
Verapamil HCl | V114-908 | 152-11-4 | C27H38N2O4 · HCl | >98% (TLC); NMR (conforms) | α-[3-[[2-(3,4-Dimethoxyphenyl)ethyl]methylamino]propyl]-3,4-dimethoxy-α-(1-methylethyl)benzeneacetonitrile, hydrochloride |
Code | Name |
C19N7-E541H | 2019-nCoV NSP7 Protein |
C19CL-G241H | 2019-nCoV 3CLpro, Active |
C19NS-E301H | 2019-nCoV NSP10/NSP16 Methyltransferase, Active |
C19NS-E311H | 2019-nCoV NSP14 Methyltransferase, Active |
C19N8-E541H | 2019-nCoV NSP8 Protein |
C19ND-G241H | 2019-nCoV Nucleocapsid protein CTD |
C19PL-G241H | 2019-nCoV PLpro, Active |
C19RP-G241H | 2019-nCoV RdRp, Active |
A51C2-G342F | ACE2 (18-615) Protein |
A53C2-G341F | ACE2 (18-739) Protein |
A52C2-G341F | ACE2 (18-740) Protein |
A51C2-G341F | ACE2 (19-740) Protein |
C12CR-E241G | Cas12 (LbCpf1), Active |
C12CR-E241H | Cas12 (LbCpf1), Active |
CS13A-E321H | Cas13a (LwC2c2), Active |
C81D7-G651F | CD147 (22-205) Protein |
C81D7-G651H | CD147 (22-205) Protein |
DP4CD-G441H | DPP4 (29-766) Protein |
M336-380G | METTL16, Active |
M323-380G | METTL3/METTL14, Active |
P535-30N | Proteinase K, Active (MBG) |
Table is showing both binding (Bind) activities to SARS-CoV-2 spike protein RBD and neutralizing (NT) abilities (inhibition of SARS-CoV-2 spike protein RBD binding to ACE-2 receptor) of each neutralizing nanobody measured in functional ELISA.
Code | Name |
C19S1-644HL | Anti 2019-nCoV Spike Protein Neutralizing Nanobody (NBX20014) |
C19S1-643HL | Anti 2019-nCoV Spike Protein Neutralizing Nanobody (NBX20025) |
C19S1-642HL | Anti 2019-nCoV Spike Protein Neutralizing Nanobody (NBX20038) |
C19S1-654L | Anti-2019-nCoV Spike Protein Neutralizing Nanobody (NBX20014) |
C19S1-653L | Anti-2019-nCoV Spike Protein Neutralizing Nanobody (NBX20025) |
C19S1-652L | Anti-2019-nCoV Spike Protein Neutralizing Nanobody (NBX20038) |
C19S1-641HL | Anti 2019-nCoV Spike Protein Neutralizing Nanobody (NBX20010) |
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Available for next day delivery if ordered before 12pm
Product Name | Cat# |
Anti-2019-nCoV Spike Protein Neutralizing Nanobody (NBX20038) | C19S1-652L |
Anti-2019-nCoV Spike Protein Neutralizing Nanobody (NBX20025) | C19S1-653L |
2019-nCoV PLpro, Active | C19PL-G241H |
2019-nCoV 3CLpro, Active | C19CL-G241H |
2019-nCoV Spike protein RBD (E484Q) | C19SD-G231CH |
2019-nCoV Spike protein RBD (K417N) | C19SD-G236H |
2019-nCoV Spike protein RBD (K417N, E484K, N501Y) | C19SD-G232H |
2019-nCoV Spike protein RBD (K417T) | C19SD-G239H |
2019-nCoV Spike protein RBD (K417T, E484K and N501Y) | C19SD-G231AH |
2019-nCoV Spike protein RBD (L452R) | C19SD-G235H |
2019-nCoV Spike protein RBD (N440K) | C19SD-G231EH |
2019-nCoV Spike protein RBD (N501Y) | C19SD-G231H |
2019-nCoV Spike protein RBD (S477G) | C19SD-G231BH |
2019-nCoV Spike protein RBD (S477N) | C19SD-G238H |
2019-nCoV Spike protein RBD (Y453F) | C19SD-G234H |
2019-nCoV Spike protein RBD, Fc Tag | C19SD-G241F |
2019-nCoV Spike protein RBD, HIS Tag | C19SD-G241H |
2019-nCoV Spike RBD-N Protein Chimera | C19NSD-G242H |
Cas12 (LbCpf1), Active GST Tag | C12CR-E241G |
Cas12 (LbCpf1), Active His Tag | C12CR-E241H |
Cas13a (LwC2c2), Active | CS13A-E321H |
MERS Spike Protein RBD | MERSD-G241F |
METTL16, Active | M336-380G |
METTL3/METTL14, Active | M323-380G |