Pharma Intermediates & Building Blocks
Heterocyclic Building Blocks
Source 1062 heterocyclic building blocks for research, QC and production, documented with COA and SDS.
1,587products
11sub-categories
83in stock
COA + SDSwith every lot
Pyridine Derivatives 344Pyrimidines, Pyrazines & Pyridazines 162Indole Derivatives 75Quinolines & Isoquinolines 86Imidazoles & Benzimidazoles 143Triazoles, Tetrazoles & Triazines 79Thiophenes, Thiazoles & Thiadiazoles 164Furans, Pyrans & Coumarins 80Piperidines, Piperazines & Morpholines 199Pyrroles, Pyrrolidines & Pyrazoles 170Other Heterocyclic Building Blocks 85
(1,4,7-Triazacyclononane-N,N`,N``-triacetic acid)
- CAS
- 56491-86-2
- Formula
- C12H21N3O6
- MW
- 303.31 g/mol
VQ-040035
![(14BRS)-1,2,3,4,10,14b-Hexahydropyrazino[2,1-a]pyrido[2,3-c][2]benzazepine Maleate chemical structure](/media/structures/ZDKIANXNPHVNMK-BTJKTKAUSA-N.svg)
(14BRS)-1,2,3,4,10,14b-Hexahydropyrazino[2,1-a]pyrido[2,3-c][2]benzazepine Maleate
- CAS
- 135928-31-3
- Formula
- C20H21N3O4
- MW
- 367.4 g/mol
VQ-038432
![(2-Chloro-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidin-6-yl)methanol chemical structure](/media/structures/ADHCEFBFOBDYEC-UHFFFAOYSA-N.svg)
(2-Chloro-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidin-6-yl)methanol
- CAS
- 1374639-77-6
- Formula
- C12H14ClN3O
- MW
- 251.71 g/mol
In stock
(2R,3R,4R,5S)-3,4,5-Tris(benzyloxy)-2-((benzyloxy)methyl)-1-butylpiperidine
- CAS
- 227932-82-3
- Formula
- C38H45NO4
- MW
- 579.8 g/mol
VQ-031897
(2S,3AR,7aR)-Octahydro-1H-indole-2-carboxylic Acid
- CAS
- 145513-90-2
- Formula
- C9H15NO2
- MW
- 169.22 g/mol
VQ-033133
(2S,3AS,7aR)-Octahydro-1H-indole-2-carboxylic Acid
- CAS
- 145513-93-5
- Formula
- C9H15NO2
- MW
- 169.22 g/mol
VQ-041419
(2S)-1-(2,2-Dichloroacetyl)pyrrolidine-2-carboxamide
- CAS
- 1803168-08-2
- Formula
- C7H10Cl2N2O2
- MW
- 225.07 g/mol
VQ-042895
(3AR,4S,7R,7aS)-3a,4,7,7a-Tetrahydro-1H-4,7-methanoisoindole-1,3(2H)-dione
- CAS
- 1356221-52-7
- Formula
- C9H9NO2
- MW
- 163.17 g/mol
VQ-038209
![(3S,7AR)-Tetrahydro-3-(trichloromethyl)-1H,3H-pyrrolo[1,2-c]oxazol-1-one chemical structure](/media/structures/GWQBXRYSVSZLSL-XINAWCOVSA-N.svg)
(3S,7AR)-Tetrahydro-3-(trichloromethyl)-1H,3H-pyrrolo[1,2-c]oxazol-1-one
- CAS
- 1330286-50-4
- Formula
- C7H8Cl3NO2
- MW
- 244.5 g/mol
VQ-041120
(3S)-3-Aminoazepane-1-carboxylic Acid tert-Butyl Ester
- CAS
- 625471-04-7
- Formula
- C11H22N2O2
- MW
- 214.3 g/mol
In stock
(4-Methoxy-3,5-dimethylpyridin-2-yl)methanol Hydrochloride
- CAS
- 96300-88-8
- Formula
- C9H14ClNO2
- MW
- 203.66 g/mol
VQ-039829
(5-(Ethylsulfonyl)pyridin-2-yl) methanamine hydrochloride, 97%
- CAS
- 1637311-15-9
- Formula
- C8H13ClN2O2S
- MW
- 236.72 g/mol
VQ-011642
(6-(Aminomethyl)pyridin-2-yl)methanol dihydrochloride, 97%
- CAS
- 1803592-67-7
- Formula
- C7H12Cl2N2O
- MW
- 211.09 g/mol
VQ-011644
(6-Aminopyridin-2-yl)(1-methylpiperidin-4-yl)methanone
- CAS
- 613678-03-8
- Formula
- C12H17N3O
- MW
- 219.28 g/mol
VQ-037905
![(6R-Trans)-7-Amino-8-oxo-3-[(1H-tetrazol-5-ylthio)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid chemical structure](/media/structures/LRGZZONZUPMKGF-CLZZGJSISA-N.svg)
(6R-Trans)-7-Amino-8-oxo-3-[(1H-tetrazol-5-ylthio)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
- CAS
- 58016-87-8
- Formula
- C9H10N6O3S2
- MW
- 314.3 g/mol
VQ-047713
About Heterocyclic Building Blocks
Vaqora Chemicals lists 1062 heterocyclic building blocks within our Pharma Intermediates & Building Blocks range, including TMEM, HBTU, DMTMM, Aurantine. Product pages give the CAS number (1062 listed), molecular formula, molecular weight and structure wherever they are defined.
Common grades in this range include Reference Standard, Synthesis, Puriss, AR. Products are supplied mainly as crystalline, powder, liquid, packed to suit laboratory, pilot and production quantities. If you need a different pack, purity or specification, ask us for a custom quotation.
Typical users include pharmaceuticals, research & academia, agrochemicals teams. Request a quotation for any product here — we confirm availability, lead time and the full document set, and ship globally on EXW, FOB, CIF or DAP terms.
Related categories
Frequently asked questions
How many heterocyclic building blocks do you supply?
We currently list 1062 heterocyclic building blocks, such as TMEM, HBTU, DMTMM. We can also source or custom-synthesise items that are not listed.
Do heterocyclic building blocks come with a COA and SDS?
Yes. Each lot is supplied with a batch Certificate of Analysis and a 16-section GHS Safety Data Sheet. Typical COAs can be shared before you order.
Can you export heterocyclic building blocks to my country?
Yes. We ship worldwide by sea freight, air cargo and express courier, with export documentation, and pack hazardous materials to IATA/IMDG dangerous-goods rules.
Need a price, a spec or a custom compound?
Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.