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.

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 344 Pyrimidines, Pyrazines & Pyridazines 162 Indole Derivatives 75 Quinolines & Isoquinolines 86 Imidazoles & Benzimidazoles 143 Triazoles, Tetrazoles & Triazines 79 Thiophenes, Thiazoles & Thiadiazoles 164 Furans, Pyrans & Coumarins 80 Piperidines, Piperazines & Morpholines 199 Pyrroles, Pyrrolidines & Pyrazoles 170 Other Heterocyclic Building Blocks 85

Aprotinin

CAS: 9087-70-1
Formula: C₂₈₄H₄₃₂N₈₄O₇₉S₇
MW: 6511 g/mol

VQ-019499

Arecaidine hydrochloride, 95%

CAS: 6018-28-6
Formula: C₇H₁₂ClNO₂
MW: 177.63 g/mol

VQ-012499

Atropine

CAS: 51-55-8
Formula: C₁₇H₂₃NO₃
MW: 289.4 g/mol

VQ-019531

Synthesis

Aurantine

CAS: 522-16-7
Formula: C₂₀H₂₀O₇
MW: 372.4 g/mol

VQ-012399

Azomethine-h monosodium salt hydrate

CAS: 5378-49-4
Formula: CH₃N₅
MW: 85.07 g/mol

VQ-020416

Reference Standard

B-4-Pyrimidinylboronic acid

CAS: 852362-24-4
Formula: C₄H₅BN₂O₂
MW: 123.91 g/mol

In stock

Reference Standard

Benzimidazole

CAS: 51-17-2
Formula: C₇H₆N₂
MW: 118.14 g/mol

In stock

Benzimidazole, 98%

CAS: 51-17-2
Formula: C₇H₆N₂
MW: 118.14 g/mol

VQ-012182

Benzo(g)isoquinoline-5,10-dione

CAS: 46492-08-4
Formula: C₁₃H₇NO₂
MW: 209.2 g/mol

VQ-040974

Benzo[b]thiophene-2-carboxaldehyde, 97%

CAS: 3541-37-5
Formula: C₉H₆OS
MW: 162.21 g/mol

VQ-012342

Benzofuran-2-carboxylic acid, 99%

CAS: 496-41-3
Formula: C₉H₆O₃
MW: 162.14 g/mol

VQ-012400

Benzothiazole, 97%

CAS: 95-16-9
Formula: C₇H₅NS
MW: 135.19 g/mol

VQ-012343

Benzotriazole, 99%

CAS: 95-14-7
Formula: C₆H₅N₃
MW: 119.12 g/mol

VQ-012252

Benzotriazole, EP

CAS: 95-14-7
Formula: C₆H₅N₃
MW: 119.12 g/mol

VQ-047056

Benzoxazole, 98%

CAS: 273-53-0
Formula: C₇H₅NO
MW: 119.12 g/mol

VQ-012679

BIIB 021, ≥98%

CAS: 848695-25-0
Formula: C₁₄H₁₅ClN₆O
MW: 318.76 g/mol

VQ-012183

Biochanin A

CAS: 491-80-5
Formula: C₁₆H₁₂O₅
MW: 284.26 g/mol

VQ-012401

BIS THF HNS Derivative 3

CAS: 799241-86-4
Formula: C₁₁H₁₃NO₇
MW: 271.22 g/mol

VQ-036570

bisBenzimide H 33342 trihydrochloride, ≥98%

CAS: 875756-97-1
Formula: C₂₇H₃₁Cl₃N₆O
MW: 561.9 g/mol

VQ-012184

Bismuthiol (I) dipotassium salt, AR

CAS: 4628-94-8
Formula: C₂K₂N₂S₃
MW: 226.4 g/mol

VQ-020597

Bismuthiol I

CAS: 1072-71-5
Formula: C₂H₂N₂S₃
MW: 150.3 g/mol

VQ-012344

Bispyrazolone, ≥95.00%

CAS: 7477-67-0
Formula: C₂₀H₁₈N₄O₂
MW: 346.4 g/mol

VQ-046872

Blue dextran

CAS: 87915-38-6
Formula: C₂₅H₁₇FN₆
MW: 420.4 g/mol

VQ-019829

Boc-His(Trt)-Aib-OH

CAS: 2061897-68-3
Formula: C₃₄H₃₈N₄O₅
MW: 582.7 g/mol

VQ-040442

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Heterocyclic Building Blocks

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