Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 1-Cbz-3-Hydroxyazetidine
Price: ￥108.0/1g ￥198.0/5g
Purity: 98.0%
Stocking Period: 2 Day
Contact: Liu jia

Chengdu Pukang Biotechnology Co., Ltd.
China
Product Name: 1-Cbz-3-Hydroxyazetidine
Price: ￥Inquiry/10g
Purity: 98.0%
Stocking Period: 14 Day
Contact: Lihua Yang

DC Chemicals Limited
China
Product Name: 1-Cbz-3-Hydroxyazetidine
Price: $Inquiry/100mg $Inquiry/250mg $Inquiry/1g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Tony Cao

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: N-Cbz-3-Hydroxyazetidine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

128117-22-6

128117-22-6 structure

Name: 1-Cbz-3-Hydroxyazetidine
Chemical Name: Benzyl 3-Hydroxyazetidine-1-Carboxylate
CAS Number: 128117-22-6
Molecular Formula: C₁₁H₁₃NO₃
Molecular Weight: 207.226
Catalog: Signaling Pathways Antibody-drug Conjugate ADC Linker
Create Date: 2018-11-28 13:51:51
Modify Date: 2024-01-11 12:04:43
1-Cbz-3-Hydroxyazetidine is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). 1-Cbz-3-Hydroxyazetidine is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

Name	Benzyl 3-Hydroxyazetidine-1-Carboxylate
Synonyms	1-Cbz-3-Hydroxyazetidine 1-Azetidinecarboxylic acid,3-hydroxy-,phenylmethyl ester 1-Azetidinecarboxylic acid, 3-hydroxy-, phenylmethyl ester

Description	1-Cbz-3-Hydroxyazetidine is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). 1-Cbz-3-Hydroxyazetidine is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.
Related Catalog	Research Areas >> Cancer Signaling Pathways >> Antibody-drug Conjugate >> ADC Linker Signaling Pathways >> PROTAC >> PROTAC Linker
Target	Non-cleavable
In Vitro	ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker[1]. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[2].
References	[1]. Beck A, et al. Strategies and challenges for the next generation of antibody-drug conjugates. Nat Rev Drug Discov. 2017;16(5):315-337. [2]. Nalawansha DA, et al. PROTACs: An Emerging Therapeutic Modality in Precision Medicine. Cell Chem Biol. 2020;27(8):998-985.

Density	1.3±0.1 g/cm3
Boiling Point	356.7±42.0 °C at 760 mmHg
Molecular Formula	C₁₁H₁₃NO₃
Molecular Weight	207.226
Flash Point	169.5±27.9 °C
Exact Mass	207.089539
PSA	49.77000
LogP	0.45
Vapour Pressure	0.0±0.8 mmHg at 25°C
Index of Refraction	1.608
Storage condition	2-8°C

Material Safety Data Sheet

Section1. Identiﬁcation of the substance
Product Name: 1-Cbz-3-(hydroxy)azetidine
Synonyms:

Section2. Hazards identiﬁcation
Harmful by inhalation, in contact with skin, and if swallowed.

Section3. Composition/information on ingredients.
Ingredient name:1-Cbz-3-(hydroxy)azetidine
CAS number:128117-22-6

Section4. First aid measures
Skin contact:Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact:Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
ﬂushing of the eyes by separating the eyelids with ﬁngers. If irritation persists, seek medical
attention.
Inhalation:Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion:Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

Section5. Fire ﬁghting measures
In the event of a ﬁre involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

Section6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution:Wear approved mask/respirator
Hand precaution:Wear suitable gloves/gauntlets
Skin protection:Wear suitable protective clothing
Eye protection:Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

Section7. Handling and storage
Handling:This product should be handled only by, or under the close supervision of, those properly qualiﬁed
in the handling and use of potentially hazardous chemicals, who should take into account the ﬁre,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

Section8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

Section9. Physical and chemical properties
Appearance:Not speciﬁed
Boiling point:No data
No data
Melting point:
Flash point:No data
Density:No data
Molecular formula:C11H13NO3
Molecular weight:207.2

Section10. Stability and reactivity
Conditions to avoid: Heat, ﬂames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides.

Section11. Toxicological information
No data.

Section12. Ecological information
No data.

Section13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

Section14. Transportation information
Non-harzardous for air and ground transportation.

Section15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

SECTION 16 - ADDITIONAL INFORMATION
N/A

Hazard Codes	Xi

18621-18-6

501-53-1

~98%

128117-22-6

Literature: RIB-X PHARMACEUTICALS, INC.; HANSELMANN, Roger; REEVE, Maxwell, M.; JOHNSON, Graham Patent: WO2010/36329 A2, 2010 ; Location in patent: Page/Page column 16-17; 21 ;

45347-82-8

501-53-1

~68%

128117-22-6

Literature: ASTRAZENECA AB; ASTRAZENECA UK LIMITED; CONNOLLY, Stephen; EBDEN, Mark, Richard; LANGER, Thomas; STEVEN, Alan, Robert; STEWART, Craig, Robert; TOMLIN, Paula, Margaret; WALTERS, Iain, Alastair, Stewart; WILLIAMS, Andrew, John Patent: WO2013/8002 A1, 2013 ; Location in patent: Page/Page column 48; 49 ;

Precursor 3
18621-18-6 501-53-1 45347-82-8
DownStream 2
105258-93-3 939759-26-9

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