Compound search:Set keywords and then click SEARCH.

Negative matches:
Compound Search guide

How to search our compounds

Compounds can be searched by catalog number(SCHEM No.), CAS RN, MDL, compound name (+ alias), SMILES, InChi string, molecular formula, and category name.

  1. Please select "and" search or "or" search.
  2. Check the items (Cat.No., CAS/MDL, name, MF=molecular fomula, category).
  3. CAS RN and MDL numbers can be keywords by CAS/MDL check.
  4. If the name checkbox is checked, compound name, aliases, Smiles, and InChI Stringwill be searched.
  5. Enter thekeywords field separated by a space, and click button to run the search.
  6. If there are too many hits, you can set negative matches to be excluded.
  7. Click on the SCHEM No. to display the detailed page for each compound.
  8. If you would like to make an inquiry, please use the Inquiry Form on each compound's detail page.
"Category" is defined by a combination of two-digit numbers+alphabets for functional groups, basic frames, and other structural features.

Typical categories are shown below.

alcohol:-OH(exclusion:saccharides,nucleic acids,cyclodextrin): @01
 alcohol primary:-CH2-OH: @01p
 alcohol secondary:-CHR-OH: @01s
 alcohol tertially:-CHRR'-OH: @01t
 phenol: @01a

amine:-NRR'(exclusion:alpha,beta amino acid): @02
 amine primary:-NH2@02p
 amine secondary:-NHR: @02s
 amine tertially:-NRR': @02t
 amine quaternary:-N+RR'R'': @02q
 amine aromatic:Ph-NRR': @02a
 desmethylamine(natural product:substitute H for methyl in tertiary amines): @02d

carboxylic acid(activated ester, amide, alpha/beta amino acids are excluded from this category): @03

amino acid: @21
 alpha-amino acid: @21a
 beta-amino acid: @21b
 alpha-hydroxy-amino acid: @21h
 peptide: @21p

Sulfur containing compounds: @13
 thiol:-SH: @13h
 disulfide:-SS-: @13d
 thioether:-S-: @13e
 sulfoxide,sulfone:-SO-,-SO2-: @13h
 sulfate,sulfonate:-OSO3H,-SO3H: @13s
nitro, nitroso:-NO2,-NO: @12
ketone:-CO-: @15
 ketone alpha,beta-unsaturated: @15u
aldehyde:-CHO: @14
silane(exclusion:derived from protecting group):@51

stable isotope: @35
monomer: @36
sugar(exclusion:nucleic acid,cyclodextrin): 23

protected: @31
 partially-protected: @31p
activated: @30
 NHS(N-hydroxysuccinimide): @30s
 tosylate(p-toluenesulfonate): @30t

branch: @45
 glycerol: @45g

cyclic: @41

 polyethylene glycol(PEG,PEO):@90e
 polypropylene glycol(PPG):@90p

cyclodextrin: @50
 beta-cyclodextrin: @50b
 alpha-cyclodextrin: @50a
 gamma-cyclodextrin: @50g

Pillar-arene: @82

dye: @33
 Fluorescent: @33f
  Rhodamine based: @33fr
  Cyanine based: @33fc
   Cy3 series: @33fci3
   Cy5 series: @33fci5
   Cy7 series: @33fci7
  BODIPY based: @33fb

multifunctional : @49
 bifunctional: @49b
・Mainly applied to dyes and fluorescent dyes.PEG derivatives, cyclodextrins, sugars, amino acids, and structures that do not utilize two functional groups are excluded.

Photoreactive: @32
liquid crystal: @80
dental material: @81
halotag/halolinker: @39

Example: Search for poly(ethylene glycol) derivatives containing azides and amines:
Check "and" and "category" and enter @90 @02 @09 (separated by a space) as keywords, then click the SEARCH button.
If you want to exclude aromatic amines, hydrazine, and tertiary amines, enter @02a @02h @02t
in Negative matches field.
Shinsei Chemical Co., Ltd. has a lot of experience in synthesis of polyethylene glycol derivatives,cyclodextrin derivatives,
unnatural amino acids,stable isotope compounds.

The following is also a way to search by checking the "Category" checkbox.

Compound search:Check categories and click SEARCH button.
Negative matches: