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

Itraconazole

CAS: 84625-61-6
Formula: C₃₅H₃₈Cl₂N₈O₄
MW: 705.6 g/mol

In stock

Reference Standard

Ivabradine

CAS: 155974-00-8
Formula: C₂₇H₃₆N₂O₅
MW: 468.6 g/mol

VQ-031314

Reference Standard

Ivabradine Hydrochloride

CAS: 148849-67-6
Formula: C₂₇H₃₇ClN₂O₅
MW: 505 g/mol

VQ-026257

Reference Standard

Ivabradine oxalate

CAS: 1086026-42-7
Formula: C₂₉H₃₈N₂O₉
MW: 558.6 g/mol

VQ-037788

Reference Standard

Ivacaftor

CAS: 873054-44-5
Formula: C₂₄H₂₈N₂O₃
MW: 392.5 g/mol

In stock

Reference Standard

Ivosidenib WS

CAS: 1448347-49-6
Formula: C₂₈H₂₂ClF₃N₆O₃
MW: 583 g/mol

In stock

Reference Standard

Ixabepilone

CAS: 219989-84-1
Formula: C₂₇H₄₂N₂O₅S
MW: 506.7 g/mol

VQ-031353

Reference Standard

Ixazomib

CAS: 1072833-77-2
Formula: C₁₄H₁₉BCl₂N₂O₄
MW: 361 g/mol

VQ-026277

Reference Standard

Ixazomib Citrate

CAS: 1239908-20-3
Formula: C₂₀H₂₃BCl₂N₂O₉
MW: 517.1 g/mol

VQ-026278

Reference Standard

Jacobine

CAS: 6870-67-3
Formula: C₁₈H₂₅NO₆
MW: 351.4 g/mol

VQ-032661

Reference Standard

Josamycin

CAS: 16846-24-5
Formula: C₄₂H₆₉NO₁₅
MW: 828 g/mol

VQ-031501

Reference Standard

Josamycin Propionate

CAS: 40922-77-8
Formula: C₄₅H₇₃NO₁₆
MW: 884.1 g/mol

VQ-031363

Reference Standard

Kanamycin C

CAS: 2280-32-2
Formula: C₁₈H₃₆N₄O₁₁
MW: 484.5 g/mol

VQ-048739

Reference Standard

Kanamycin sulfate hydrate

CAS: 5965-95-7
Formula: C₁₈H₄₀N₄O₁₆S
MW: 600.6 g/mol

VQ-037800

Reference Standard

Karanjin

CAS: 521-88-0
Formula: C₁₈H₁₂O₄
MW: 292.3 g/mol

VQ-037801

Reference Standard

Ketanserin

CAS: 74050-98-9
Formula: C₂₂H₂₂FN₃O₃
MW: 395.4 g/mol

VQ-048741

Reference Standard

Ketanserin Tartrate

CAS: 83846-83-7
Formula: C₂₆H₂₈FN₃O₉
MW: 545.5 g/mol

VQ-048740

Reference Standard

Ketoconazole

CAS: 65277-42-1
Formula: C₂₆H₂₈Cl₂N₄O₄
MW: 531.4 g/mol

In stock

Reference Standard

Ketorolac

CAS: 74103-06-3
Formula: C₁₅H₁₃NO₃
MW: 255.27 g/mol

In stock

Reference Standard

Ketorolac Tromethamine

CAS: 74103-07-4
Formula: C₁₉H₂₄N₂O₆
MW: 376.4 g/mol

VQ-007516

Reference Standard

Ketotifen

CAS: 34580-13-7
Formula: C₁₉H₁₉NOS
MW: 309.4 g/mol

VQ-037820

Reference Standard

Ketotifen fumarate

CAS: 34580-14-8
Formula: C₂₃H₂₃NO₅S
MW: 425.5 g/mol

VQ-022901

Reference Standard

Khellin

CAS: 82-02-0
Formula: C₁₄H₁₂O₅
MW: 260.24 g/mol

VQ-031395

Reference Standard

Kitol

CAS: 4626-00-0
Formula: C₄₀H₆₀O₂
MW: 572.9 g/mol

VQ-048752

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?