How many api reference standards do you supply?

We currently list 583 api reference standards, such as Digoxin, Doxepin, Estriol. We can also source or custom-synthesise items that are not listed.

Do api reference standards 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 api reference standards 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.

Impurities & Reference Standards

API Reference Standards

583 api reference standards with CAS numbers, structures and specifications — batch COA and GHS SDS supplied.

3,436products

377in stock

COA + SDSwith every lot

Reference Standard

Phenelzine Sulfate

CAS: 156-51-4
Formula: C₈H₁₄N₂O₄S
MW: 234.28 g/mol

VQ-041436

Reference Standard

Phenibut Hydrochloride

CAS: 3060-41-1
Formula: C₁₀H₁₄ClNO₂
MW: 215.67 g/mol

VQ-041438

Reference Standard

Phenindione

CAS: 83-12-5
Formula: C₁₅H₁₀O₂
MW: 222.24 g/mol

VQ-041439

Reference Standard

Phenobarbital

CAS: 50-06-6
Formula: C₁₂H₁₂N₂O₃
MW: 232.23 g/mol

VQ-033149

Reference Standard

Phenoxybenzamine Hydrochloride

CAS: 63-92-3
Formula: C₁₈H₂₃Cl₂NO
MW: 340.3 g/mol

VQ-027461

Reference Standard

Phenprocoumon

CAS: 435-97-2
Formula: C₁₈H₁₆O₃
MW: 280.3 g/mol

VQ-039075

Reference Standard

Phenthoate

CAS: 2597-03-7
Formula: C₁₂H₁₇O₄PS₂
MW: 320.4 g/mol

VQ-039527

Reference Standard

Phentolamine Mesilate

CAS: 65-28-1
Formula: C₁₈H₂₃N₃O₄S
MW: 377.5 g/mol

VQ-033153

Reference Standard

Phenylephrine

CAS: 59-42-7
Formula: C₉H₁₃NO₂
MW: 167.2 g/mol

VQ-007650

Reference Standard

Phenylephrine Hydrochloride

CAS: 61-76-7
Formula: C₉H₁₄ClNO₂
MW: 203.66 g/mol

VQ-007651

Reference Standard

Phenyltoloxamine

CAS: 92-12-6
Formula: C₁₇H₂₁NO
MW: 255.35 g/mol

VQ-007652

Reference Standard

Phenyltoloxamine citrate

CAS: 1176-08-5
Formula: C₂₃H₂₉NO₈
MW: 447.5 g/mol

In stock

Reference Standard

Phenyramidol Hydrochloride

CAS: 326-43-2
Formula: C₁₃H₁₅ClN₂O
MW: 250.72 g/mol

VQ-027469

Reference Standard

Phenytoin Sodium

CAS: 630-93-3
Formula: C₁₅H₁₁N₂NaO₂
MW: 274.25 g/mol

VQ-033158

Reference Standard

Phloroglucinol Dihydrate

CAS: 6099-90-7
Formula: C₆H₈O₄
MW: 144.12 g/mol

VQ-029167

Reference Standard

Phosphamidone

CAS: 13171-21-6
Formula: C₁₀H₁₉ClNO₅P
MW: 299.69 g/mol

VQ-041459

Reference Standard

Phosphatidylcholine (Soy)

CAS: 97281-47-5
Formula: C₄₄H₈₀NO₈P
MW: 782.08 g/mol

VQ-039488

Reference Standard

Phosphatidylethanolamine

CAS: 39382-08-6
Formula: C₉H₁₈NO₈P
MW: 299.21 g/mol

VQ-041460

Reference Standard

Phosphatidylethanolamine (Soy)

CAS: 97281-51-1
Formula: NA

VQ-041461

Reference Standard

Phosphorylcholine chloride

CAS: 107-73-3
Formula: C₅H₁₅ClNO₄P
MW: 219.6 g/mol

VQ-039894

Reference Standard

Phthalylsulfathiazole

CAS: 85-73-4
Formula: C₁₇H₁₃N₃O₅S₂
MW: 403.4 g/mol

VQ-027471

Reference Standard

Phyllanthin

CAS: 10351-88-9
Formula: C₂₄H₃₄O₆
MW: 418.5 g/mol

VQ-032331

Reference Standard

Physostigmine

CAS: 57-47-6
Formula: C₁₅H₂₁N₃O₂
MW: 275.35 g/mol

VQ-041464

Reference Standard

Physostigmine Salicylate

CAS: 57-64-7
Formula: C₂₂H₂₇N₃O₅
MW: 413.5 g/mol

VQ-019566

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.

Request a quote Contact sales

Laboratory Chemicals & Reagents View all

Solvents View all

Life Science & Biochemicals View all

APIs & Bulk Drugs View all

Impurities & Reference Standards View all

Pharma Intermediates & Building Blocks View all

Inorganic Chemicals, Metals & Advanced Materials View all

Industrial & Specialty Chemicals View all

API Reference Standards

Need a price, a spec or a custom compound?