Tandospirone citrate

枸橼酸坦度螺酮

Also known as: Tandospirone citrate, SM-3997, Sediel, Methanospirone, Metanopirone citrate, Tandospirone dihydrogen citrate, (3aR,4S,7R,7aS)-2-{4-[4-(pyrimidin-2-yl)piperazin-1-yl]butyl}hexahydro-1H-4,7-methanoisoindole-1,3(2H)-dione 2-hydroxypropane-1,2,3-tricarboxylate (1:1), UNII-0R8E9BWM4J

Tandospirone citrate (CAS 112457-95-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C27H37N5O9 and a molecular weight of 575.611 g/mol. It is also known as SM-3997, Sediel and Methanospirone. Key properties include a boiling point of 613.9ºC at 760 mmHg and a flash point of 325.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 112457-95-1
Jingsj CID: J-1960072-5
Molecular Formula: C₂₇H₃₇N₅O₉
Chinese Name: 枸橼酸坦度螺酮
Molecular Weight: 575.611 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	613.9ºC at 760 mmHg
Flash Point	325.1ºC
Exact Mass	575.259155
PSA	201.77000
LogP	0.10220
Vapor Pressure	5.23E-15mmHg at 25°C
Storage Conditions	2-8℃

Activity & Biological Data

Additional Information	[1]. Hamik A, et al. Analysis of tandospirone (SM-3997) interactions with neurotransmitter receptor binding sites. Biol Psychiatry. 1990 Jul 15;28(2):99-109. [2]. Shimizu H, et al. Characterization of the putative anxiolytic SM-3997 recognition sites in rat brain. Life Sci. 1988;42(24):2419-27. [3]. Uehara T, et al. Chronic treatment with tandospirone, a 5-HT1A receptor partial agonist, suppresses footshock stress-induced lactate production in the prefrontal cortex of rats. Pharmacol Biochem Behav. 2013 Nov 15;113:1-6. [4]. Ohmura Y, et al. Tandospirone suppresses impulsive action by possible blockade of the 5-HT1A receptor. J Pharmacol Sci. 2013;122(2):84-92.

Additional Information

[1]. Hamik A, et al. Analysis of tandospirone (SM-3997) interactions with neurotransmitter receptor binding sites. Biol Psychiatry. 1990 Jul 15;28(2):99-109. [2]. Shimizu H, et al. Characterization of the putative anxiolytic SM-3997 recognition sites in rat brain. Life Sci. 1988;42(24):2419-27. [3]. Uehara T, et al. Chronic treatment with tandospirone, a 5-HT1A receptor partial agonist, suppresses footshock stress-induced lactate production in the prefrontal cortex of rats. Pharmacol Biochem Behav. 2013 Nov 15;113:1-6. [4]. Ohmura Y, et al. Tandospirone suppresses impulsive action by possible blockade of the 5-HT1A receptor. J Pharmacol Sci. 2013;122(2):84-92.

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Tandospirone citrate?

The CAS number of Tandospirone citrate is 112457-95-1.

What are the molecular formula and molecular weight of Tandospirone citrate?

Tandospirone citrate has molecular formula C27H37N5O9 and molecular weight 575.611 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Tandospirone citrate (CAS 112457-95-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1960072-5 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.