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

Lissamine fast yellow (C.I. 18965)

CAS: 6359-98-4
Formula: C₁₆H₁₀Cl₂N₄Na₂O₇S₂
MW: 551.3 g/mol

VQ-019844

LOC14, ≥98%

CAS: 877963-94-5
Formula: C₁₆H₁₉N₃O₂S
MW: 317.4 g/mol

VQ-012355

Lonidamine

CAS: 50264-69-2
Formula: C₁₅H₁₀Cl₂N₂O₂
MW: 321.2 g/mol

VQ-012604

Extra Pure

Loperamide, extra pure

CAS: 53179-11-6
Formula: C₂₉H₃₃ClN₂O₂
MW: 477 g/mol

VQ-046713

Loratadine Epoxide

CAS: 1189694-51-6
Formula: C₂₂H₂₃ClN₂O₃
MW: 398.9 g/mol

VQ-038125

Lornoxicam, 98%

CAS: 70374-39-9
Formula: C₁₃H₁₀ClN₃O₄S₂
MW: 371.8 g/mol

VQ-011870

Losartan Cum-Alcohol

CAS: 852357-69-8
Formula: C₃₁H₃₃ClN₆O
MW: 541.1 g/mol

VQ-038150

Luciferin, ≥98.00%

CAS: 2591-17-5
Formula: C₁₁H₈N₂O₃S₂
MW: 280.3 g/mol

VQ-020424

Synthesis

Lycopodium

CAS: 8023-70-9
Formula: C₅₈H₆₃N₃O₉
MW: 946.1 g/mol

VQ-012053

Mag-Fura-2-AM, ≥95%

CAS: 130100-20-8
Formula: C₃₀H₃₀N₂O₁₉
MW: 722.6 g/mol

VQ-012423

Maleic Hydrazide Monopotassium

CAS: 28382-15-2
Formula: C₄H₃KN₂O₂
MW: 150.18 g/mol

VQ-020549

Synthesis

Maleic hydrazide, 98%

CAS: 123-33-1
Formula: C₄H₄N₂O₂
MW: 112.09 g/mol

VQ-011977

Maleic hydrazide, AR

CAS: 123-33-1
Formula: C₄H₄N₂O₂
MW: 112.09 g/mol

VQ-046708

Malvidin Chloride

CAS: 643-84-5
Formula: C₁₇H₁₅ClO₇
MW: 366.7 g/mol

VQ-040413

MBTH, GR 98%

CAS: 38894-11-0
Formula: C₈H₁₂ClN₃OS
MW: 233.72 g/mol

VQ-012356

Meat peptone

CAS: 91079-38-8
Formula: C₃₀H₄₄N₂O₅S
MW: 544.7 g/mol

VQ-011978

Mebendazole, 98%

CAS: 31431-39-7
Formula: C₁₆H₁₃N₃O₃
MW: 295.29 g/mol

VQ-012208

Synthesis

Melamine, 99%

CAS: 108-78-1
Formula: C₃H₆N₆
MW: 126.12 g/mol

VQ-012259

Melamine, 99%+

CAS: 108-78-1
Formula: C₃H₆N₆
MW: 126.12 g/mol

VQ-012260

Melamine, AR

CAS: 108-78-1
Formula: C₃H₆N₆
MW: 126.12 g/mol

VQ-046706

Mesembrenone

CAS: 468-54-2
Formula: C₁₇H₂₁NO₃
MW: 287.35 g/mol

VQ-038326

meta-Topolin, 98%

CAS: 75737-38-1
Formula: C₁₂H₁₁N₅O
MW: 241.25 g/mol

VQ-012209

Methotrexate Disodium Salt

CAS: 7413-34-5
Formula: C₂₀H₂₀N₈Na₂O₅
MW: 498.4 g/mol

VQ-046725

Methotrexate hydrate, ≥98% (HPLC), powder

CAS: 133073-73-1
Formula: C₂₀H₂₄N₈O₆
MW: 472.5 g/mol

VQ-011979

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Heterocyclic Building Blocks

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