WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 527715

CAS#: 1001404-83-6

Description: AAI-101, also known as Enmetazobactam, is a beta lactamase inhibitor potentially for the treatment of multi-drug resistant gram-negative bacterial infections.

Price and Availability

Size Price Shipping out time Quantity
10mg USD 150 Same Day
25mg USD 250 Same Day
50mg USD 450 Same Day
100mg USD 650 Same Day
200mg USD 950 Same Day
500mg USD 1850 Same Day
1g USD 3250 Same Day
2g USD 5850 Same Day
Inquire bulk and customized quantity

Pricing updated 2021-01-20. Prices are subject to change without notice.

AAI-101, purity > 98%, is in stock. The same day shipping out after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 527715
Name: AAI-101
CAS#: 1001404-83-6
Chemical Formula: C11H14N4O5S
Exact Mass: 314.0685
Molecular Weight: 314.32
Elemental Analysis: C, 42.03; H, 4.49; N, 17.83; O, 25.45; S, 10.20

Synonym: AAI-101; AAI-101; AAI-101, Enmetazobactam

IUPAC/Chemical Name: (2S,3S,5R)-3-methyl-3-((3-methyl-1H-1,2,3-triazol-3-ium-1-yl)methyl)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate 4,4-dioxide


InChi Code: InChI=1S/C11H14N4O5S/c1-11(6-14-4-3-13(2)12-14)9(10(17)18)15-7(16)5-8(15)21(11,19)20/h3-4,8-9H,5-6H2,1-2H3/t8-,9+,11+/m1/s1

SMILES Code: C[N+]1=NN(C[C@@](S([C@]2([H])C3)(=O)=O)(C)[C@H](C([O-])=O)N2C3=O)C=C1

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Certificate of Analysis:

Safety Data Sheet (SDS):

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:


1: Crandon JL, Nicolau DP. In vivo activities of simulated human doses of cefepime and cefepime-AAI101 against multidrug-resistant Gram-negative Enterobacteriaceae. Antimicrob Agents Chemother. 2015 May;59(5):2688-94. doi: 10.1128/AAC.00033-15. PubMed PMID: 25712356; PubMed Central PMCID: PMC4394792.

2: Crandon JL, Nicolau DP. In Vitro Activity of Cefepime/AAI101 and Comparators against Cefepime Non-susceptible Enterobacteriaceae. Pathogens. 2015 Aug 18;4(3):620-5. doi: 10.3390/pathogens4030620. PubMed PMID: 26295262; PubMed Central PMCID: PMC4584277.

3: Bush K. A resurgence of β-lactamase inhibitor combinations effective against multidrug-resistant Gram-negative pathogens. Int J Antimicrob Agents. 2015 Nov;46(5):483-93. doi: 10.1016/j.ijantimicag.2015.08.011. Review. PubMed PMID: 26498989.