Poisons in Carrouban

Note: Many of the poisons listed here have modifiers to Holdout (to hide them on the poisoner’s person before administration) and Sleight of Hand (to administer them unobserved while others are watching). The difficulty of transporting and administering the poison may give investigators some clue about which suspect might have been capable of the poisoning.

For those looking to use poison on their weapons, the following can be put on blades: Curare and Manchineel are typically used. Viper venom and Golden Dart Frog Toxin are also used, but require near-immediate access to the creatures.

Note - while Cantharides is a contact agent, it is a powder and thus not possible to apply to a blade effectively enough to use as a poison.

Substance Where it comes from
Arsenic (arsenic trioxide) Arsenic Trioxide is a stable mineral compound widely traded in Conquistan and routinely shipped overseas for medical, industrial, and pest-control purposes. It has presence in Carrouban wherever Conquistan settlement or administration exists.
Mercury (quicksilver) - see Calomel Mercury is shipped from Conquistan sources to colonial regions for medical and industrial use. Despite handling risks, it transports well and is physically present in colonial supply networks.
Antimony (compounds) Antimony compounds are common early modern medicinal substances and are transported with apothecary goods. Their chemical stability brings presence in Carrouban through trade.
Lead Poisoning Lead is ubiquitous in colonial material culture, appearing in pipes, cookware, pigments, and additives.
Cantharides (Conquistan fly) Cantharides consist of dried beetles that store and transport easily. They are widely used in Conquistan medicine and can be shipped to Carrouban without degradation.
Cassava (manioc) Cassava is indigenous to Carrouban and is widely cultivated. Its cyanogenic toxicity is intrinsic to the plant and managed through Azcelani processing knowledge, though it is not possible to extract or administer cyanide as a portable poison with TL4 techniques (until 1786 by Carl Wilhelm Scheele). Improperly prepared cassava doesn't resemble correctly processed root in any capacity - because processing it for safe consumption makes it into a paste.
Manchineel Manchineel is a native Carrouban coastal tree whose fruit, sap, smoke, and wood are toxic. It is widely recognized as dangerous.
Curare (Indigenous preparations) Curare refers to Azcelani plant-based preparations native to Carrouban. It exists within Azcelani trade and knowledge networks that extend into the Carrouban sphere.
Marine / fish toxins Certain reef fish and marine organisms caused poisoning due to local ecological conditions. These toxins are part of the natural environment and known through Azcelani experience.
Lime Powder / quicklime Lime is produced locally in Carrouban from abundant limestone and used in construction and agriculture. Its caustic properties are well known.
Carbon monoxide Carbon monoxide is produced unintentionally through incomplete combustion of charcoal and fires. While not chemically understood, it is physically present wherever enclosed burning occurrs.
Ground glass (material) Glass and Mutite objects are present through Conquistan and Azcelani trade.
Ricin (castor beans) Castor bean plants are present and naturalized in the Carrouban. While Ricin is not isolated, the toxic seeds themselves are reliably present.
Viper venom While venom rapidly loses potency outside the living animal and cannot not be preserved with current Azcelani techniques, if used immediately following extraction it can be dangerous.
Golden Dart Frog Toxin It is only found in very small areas of South Carrouban, and doesn't see use outside of this - transporting live frogs across long distances would almost certainly kill them, removing them from their diet causes toxin loss, the toxin very rapidly degrades outside the living creature, and heat and humidity further degrade usability.

I don't see (poison) listed! Is it available?

The following are not present in Carrouban - whether due to difficulty transporting it from Conquistan, insufficient technological progress, or otherwise: