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

L-(+)-Ergothioneine

CAS: 497-30-3
Formula: C₉H₁₅N₃O₂S
MW: 229.3 g/mol

VQ-037045

Reference Standard

L-a-Phosphatidylinositol Sodium Salt

CAS: 383907-36-6
Formula: C₄₃H₇₈NaO₁₃P
MW: 857.04 g/mol

VQ-041462

Reference Standard

L-Centchroman

CAS: 78994-23-7
Formula: C₃₀H₃₅NO₃
MW: 457.6 g/mol

VQ-038789

Reference Standard

L-Glutamine

CAS: 56-85-9
Formula: C₅H₁₀N₂O₃
MW: 146.14 g/mol

In stock

Reference Standard

L-Homocystine

CAS: 626-72-2
Formula: C₈H₁₆N₂O₄S₂
MW: 268.4 g/mol

VQ-036488

Reference Standard

L-Lysine Acetate

CAS: 57282-49-2
Formula: C₈H₁₈N₂O₄
MW: 206.24 g/mol

VQ-031702

Reference Standard

L-Norvaline

CAS: 6600-40-4
Formula: C₅H₁₁NO₂
MW: 117.15 g/mol

VQ-041413

Reference Standard

L-Ornithine Dihydrochloride

CAS: 897931-98-5
Formula: C₆H₁₄N₂O_2.2HCl
MW: 219.11 g/mol

VQ-048943

Reference Standard

L-Thyronine

CAS: 1596-67-4
Formula: C₁₅H₁₅NO₄
MW: 273.28 g/mol

VQ-034207

Reference Standard

L-Tyrosinol

CAS: 5034-68-4
Formula: C₉H₁₃NO₂
MW: 167.2 g/mol

VQ-007518

Reference Standard

L-Tyrosinol hydrochloride

CAS: 87745-27-5
Formula: C₉H₁₄ClNO₂
MW: 203.66 g/mol

In stock

Reference Standard

Labetalol Hydrochloride

CAS: 32780-64-6
Formula: C₁₉H₂₅ClN₂O₃
MW: 364.9 g/mol

VQ-026322

Reference Standard

Lacidipine

CAS: 103890-78-4
Formula: C₂₆H₃₃NO₆
MW: 455.5 g/mol

VQ-007520

Reference Standard

Lacosamide

CAS: 175481-36-4
Formula: C₁₃H₁₈N₂O₃
MW: 250.29 g/mol

VQ-034853

Reference Standard

Lactic Acid Lactate

CAS: 923-17-1
Formula: C₆H₁₀O₅
MW: 162.14 g/mol

VQ-040202

Reference Standard

Lactitol

CAS: 585-86-4
Formula: C₁₂H₂₄O₁₁
MW: 344.31 g/mol

VQ-007521

Reference Standard

Lactitol monohydrate

CAS: 81025-04-9
Formula: C₁₂H₂₆O₁₂
MW: 362.33 g/mol

In stock

Reference Standard

Lactofen

CAS: 77501-63-4
Formula: C₁₉H₁₅ClF₃NO₇
MW: 461.8 g/mol

VQ-045203

Reference Standard

Lactoferricin B

CAS: 146897-68-9
Formula: C₁₄₁H₂₂₄N₄₆O₂₉S₃
MW: 3123.8 g/mol

VQ-037851

Reference Standard

Lactose

CAS: 14641-93-1
Formula: C₁₂H₂₂O₁₁
MW: 342.3 g/mol

VQ-039009

Reference Standard

Lactose Anhydrous

CAS: 63-42-3
Formula: C₁₂H₂₂O₁₁
MW: 342.3 g/mol

VQ-023361

Reference Standard

Lamivudine

CAS: 134678-17-4
Formula: C₈H₁₁N₃O₃S
MW: 229.26 g/mol

In stock

Reference Standard

Lamotrigine WS

CAS: 84057-84-1
Formula: C₉H₇Cl₂N₅
MW: 256.09 g/mol

In stock

Reference Standard

Landiolol

CAS: 133242-30-5
Formula: C₂₅H₃₉N₃O₈
MW: 509.6 g/mol

VQ-048788

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?