Trimethylamine

Trimethylamine is the chemically named substance that concentrates several strands of the dream of 23–24 July 1895. In the dream, its formula appears in bold type; in Sigmund Freud’s later analysis, that striking image leads from a remembered chemical sequence to sexuality, intellectual friendship, and the dream’s broader pattern of self-justification.

Appearance in the Dream

The dream places Trimethylamine among a chain of substances: a propyl preparation, propylene, and propionic acid. Freud imagines that Irma’s illness has been caused by an injection and sees the formula for Trimethylamine printed in bold. The substance thus enters a scene in which several doctors discuss the patient’s condition and the possible source of the infection.

The formula’s visual emphasis distinguishes it from the surrounding medical details. Freud observes that its bold printing seems to mark something of special importance, a clue that directs his interpretation beyond the dream’s apparent clinical problem.

From a Chemical Association to Sexuality

Freud traces the substance to a conversation with a friend who had followed his work for years. The friend had discussed ideas about a chemistry of sexuality and, among other claims, identified Trimethylamine as one of the products of sexual metabolism. In the analysis, the chemical therefore connects the dream’s medical vocabulary to sexuality, which Freud regarded as highly significant in the origins of the nervous conditions he sought to treat.

The association also brings the friend himself into the dream’s chain of ideas. Freud recalls that the friend had supported him when he felt alone and deserted, and interprets the formula as carrying both the subject of sexuality and the memory of that valued approval. The substance functions not simply as a technical term but as a compact junction between scientific speculation and personal recollection.

The Nasal Association and Medical Responsibility

The friend’s expertise supplies another route back into the dream. He studied effects involving the nose and adjacent cavities and had identified connections between the nostrils and female sexual organs. Freud associates this work with the dream’s unusual curled structures in Irma’s throat, and recalls that he had asked the friend to examine Irma to determine whether her stomach pains might have a nasal origin.

That connection also carries a more troubling medical association: the friend suffered from nasal abscesses, which worried Freud. Freud reads the dream’s reference to infection spreading through the body as possibly alluding to those concerns. Trimethylamine consequently stands within a network where chemical speculation, bodily symptoms, professional consultation, and anxiety about illness converge.

A Clue in the Dream’s Self-Defence

The dream’s chain of substances also participates in Freud’s account of responsibility. In the imagined scene, the injection is attributed to Otto, and the dream raises the possibility that the syringe was unclean. Freud connects its warning against giving injections lightly with his recollection that Otto had seemed to oppose him, and with a previous case that had prompted an accusation of rashness against Freud himself. He says that the dream gathers examples of both conscientiousness and its opposite.

Within this argumentative structure, Trimethylamine is not an isolated symbol with a single meaning. Its bold appearance leads toward sexuality and a friend’s approval, while its placement in the imagined injection scene helps bind those associations to questions of treatment and blame. The formula’s significance emerges through the remembered connections Freud follows, rather than from the chemical name alone.