He first appeared at the Paris Opéra on 2 October 1837 as an emergency replacement in a leading bass role, Pietro in Daniel Auber's La muette de Portici. He sang with great emotion, but was thought to have overextended his resources. However, having rescued the performance (and the receipts), he was rewarded by engagement as a company regular, and continued to sing there until 1854. During this period he created a number of minor roles, as noted in the list below. He also performed other minor roles, such as a herald-in-arms in Meyerbeer's Robert le diable, the Comte de Nevers in Meyerbeer's Les Huguenots, Rodolphe and Melcthal in Rossini's Guillaume Tell, and Pharaon in Rossini's Moïse.
- 1838: Lorenzo in Guido et Ginevra by Halévy
- 1838: Pompeo in Benvenuto Cellini by Berlioz
- 1839: Pikler in Le lac des fées by Auber
- 1840: A Christian in Les martyrs by Donizetti
- 1840: A lord in La favorite by Donizetti
- 1843: A student in Charles VI by Halévy
- 1844: Randolph in Marie Stuart by Louis Niedermeyer
- 1847: A herald in Jérusalem by Giuseppe Verdi
- 1849: The herald in Le prophète by Meyerbeer
- 1852: A lord in Le Juif errant by Halévy
- Infrequently spelled Molinié (Tamvaco 2000, vol. 2, p. 740).
- Tamvaco 2000, vol. 2, p. 740.
- Tamvaco 2000, pp. 774 (Rodolphe), 816 (herald-in-arms), 818 (Melchtal, Pharaon); Wolff 1962, p. 118 (Comte de Nevers).
- Tamvaco 2000, p. 869.
- Wolff 1962, p. 177; Parsons 1993, p. 877.
- Parsons, Charles H. (1993). Opera Premieres: An Index of Casts/Performaners: K–Z, Volume 16 in the series The Mellen Opera Index. Lewiston, New York: The Edward Mellen Press. ISBN 9780889464155.
- Tamvaco, Jean-Louis (2000). Les Cancans de l'Opéra. Chroniques de l'Académie Royale de Musique et du théâtre, à Paris sous les deux restorations (2 volumes, in French). Paris: CNRS Editions. ISBN 9782271056856.
- Wolff, Stéphane (1962). L'Opéra au Palais Garnier (1875–1962). Paris: Deposé au journal L'Entr'acte OCLC 7068320, 460748195. Paris: Slatkine (1983 reprint) ISBN 9782050002142.