BIBR 1532 - ≥98% , CAS No.321674-73-1

CAS: 321674-73-1 Cat. No.: B129898 Molecular Weight: 331.36 EC Number: 962-375-5
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
IBR 1532 | MFCD11112195 | 2-(3-Naphthalen-2-yl-but-2-enoylamino)-benzoic acid | s1186 | Telomerase Inhibitor X, BIBR1532 | 2-{[(2e)-3-(Naphthalen-2-Yl)but-2-Enoyl]amino}benzoic Acid | (E)-2-(3-(naphthalen-2-yl)but-2-enamido)benzoic acid | BRD-K04623885-00
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
10mg
B129898-10mg
3
$97.90
50mg
B129898-50mg
2
$329.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

BIBR 1532 is a potent, selective, non-competitive telomerase inhibitor with IC50 of 100 nM.
A selective telomerase inhibitor.

Specifications

Synonyms
IBR 1532 | MFCD11112195 | 2-(3-Naphthalen-2-yl-but-2-enoylamino)-benzoic acid | s1186 | Telomerase Inhibitor X, BIBR1532 | 2-{[(2e)-3-(Naphthalen-2-Yl)but-2-Enoyl]amino}benzoic Acid | (E)-2-(3-(naphthalen-2-yl)but-2-enamido)benzoic acid | BRD-K04623885-00
Specifications & Purity
≥98%
Biochemical and Physiological Mechanisms
Selective telomerase inhibitor (IC50values are 93, > 100000 and > 100000 nM for human telomerase, human RNA polymerase I and human RNA polymerase II + III respectively). Causes telomere shortening in exponentially growing NCI-H460 lung carcinoma cells and
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Action Type
INHIBITOR
Purity
≥98%
Names and Identifiers
Canonical SmilesCC(=CC(=O)NC1=CC=CC=C1C(=O)O)C2=CC3=CC=CC=C3C=C2
IUPAC Name2-[[(E)-3-naphthalen-2-ylbut-2-enoyl]amino]benzoic acid
InChIKeyPGFQXGLPJUCTOI-WYMLVPIESA-N
INCHI1S/C21H17NO3/c1-14(16-11-10-15-6-2-3-7-17(15)13-16)12-20(23)22-19-9-5-4-8-18(19)21(24)25/h2-13H,1H3,(H,22,23)(H,24,25)/b14-12+
Isomeric SMILES C/C(=C\C(=O)NC1=CC=CC=C1C(=O)O)/C2=CC3=CC=CC=C3C=C2
Molecular Weight 331.36
Reaxy-Rn 23544604
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=23544604&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzoic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentAcylaminobenzoic acid and derivatives
Alternative Parents Cinnamic acid amides  Naphthalenes  Benzoic acids  Anilides  Styrenes  N-arylamides  Benzoyl derivatives  Vinylogous amides  Secondary carboxylic acid amides  Carboxylic acids  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic homopolycyclic compounds
Substituents Acylaminobenzoic acid or derivatives - Cinnamic acid amide - Cinnamic acid or derivatives - Naphthalene - Benzoic acid - Anilide - Benzoyl - N-arylamide - Styrene - Vinylogous amide - Carboxamide group - Secondary carboxylic acid amide - Carboxylic acid derivative - Carboxylic acid - Hydrocarbon derivative - Organic nitrogen compound - Organic oxide - Carbonyl group - Organic oxygen compound - Organooxygen compound - Organonitrogen compound - Aromatic homopolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as acylaminobenzoic acid and derivatives. These are derivatives of amino benzoic acid derivatives where the amine group is N-acylated.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
TERT Tchem Telomerase reverse transcriptase (7 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
TERT Tchem Telomerase reverse transcriptase (2428 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Calu-3 (339 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MCF7 (126967 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
A549 (127892 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
NCI-H460 (60772 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HeLa (62764 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MDA-MB-231 (73002 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
NCI-H1650 (1118 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
L02 (4864 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Hdac6 Histone deacetylase 6 (222 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
rep Replicase polyprotein 1ab (378 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

1 results found

Lot NumberCertificate TypeDateItem
J1520071Certificate of AnalysisJul 09, 2025 B129898
Chemical and Physical Properties
SolubilitySolvent:DMSO, Max Conc. mg/mL: 33.14, Max Conc. mM: 100; Solvent:ethanol, Max Conc. mg/mL: 8.28, Max Conc. mM: 25
Molecular Weight331.400 g/mol
XLogP35.100
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count3
Rotatable Bond Count4
Exact Mass331.121 Da
Monoisotopic Mass331.121 Da
Topological Polar Surface Area66.400 Ų
Heavy Atom Count25
Formal Charge0
Complexity527.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count1
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds1
Covalently-Bonded Unit Count1
Documents & Articles
Citations of This Product
References
1. Shunyu Zhang, Jinxia Li, Liang Yan, Yue You, Feng Zhao, Jixing Cheng, Limin Yang, Yanqi Sun, Qingchao Chang, Ru Liu, Yunhui Li.  (2023)  Zeolitic Imidazolate Framework-8 (ZIF-8) as a Drug Delivery Vehicle for the Transport and Release of Telomerase Inhibitor BIBR 1532.  Nanomaterials,  13  (11): (1779).  [PMID:37299682] [10.3390/nano13111779]
2. Chen Li, Hui Chen, Tingting Fan, Jingru Zhao, Zheng Ding, Zeyu Lin, Shuqing Sun, Chunyan Tan, Feng Liu, Hongtao Jiang, Ying Tan.  (2023)  A visualized automatic particle counting strategy for single-cell level telomerase activity quantification.  VIEW,      [PMID:] [10.1002/VIW.20220078]
3. Lin Liu, Daohong Wu, Shuang Zhen, Kaiqing Lu, Xinyao Yi, Zhifang Sun.  (2021)  Electrochemical detection of telomerase in cancer cells based on the in-situ formation of streptavidin-biotin-DNA-biotin networks for signal amplification.  SENSORS AND ACTUATORS B-CHEMICAL,      [PMID:] [10.1016/j.snb.2021.129659]
Solution Calculators
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