A particulate nucleating agent comprising: a compound represented by the following General Formula, wherein a content of aliphatic amine in the particulate nucleating agent obtained by measurement of Procedure A shown below is equal to or more than 3 ppm and equal to or less than 190 ppm based on a mass of the entirety of the particulate nucleating agent. (Procedure A) 4 g of the particulate nucleating agent is put into a test tube for particulate nucleating agent introduction made of glass (outer diameter 30 mm × length 200 mm). In the test tube for particulate nucleating agent introduction, argon gas is introduced under a condition of 37 mL/min for 5 minutes, and then while introducing argon gas at 37 mL/min, in an argon gas atmosphere, the test tube for particulate nucleating agent introduction is heated under a condition of 180°C and 2 hours. A vaporized matter generated by heating is collected in 6 mL of a 600 mg/L methane sulfonic acid aqueous solution in a collection test tube made of glass (outer diameter 15 mm × length 150 mm). The methane sulfonic acid aqueous solution is messed up to 10 mL with a 600 mg/L methane sulfonic acid aqueous solution to prepare a measurement sample. A concentration of aliphatic amine in the obtained measurement sample is measured by using an ion chromatography method. A content (ppm) of the aliphatic amine based on a mass of the entirety of the particulate nucleating agent is calculated based on the obtained measurement value. (in General Formula, R 1 to R 4 each independently represent a hydrogen atom and a straight chain or branched alkyl group having 1 to 9 carbon atoms, R 5 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, m represents 1 or 2, in a case where m is 1, M 1 represents a hydrogen atom or an alkali metal atom, and in a case where m is 2, M 1 represents a group 2 element, Al or Zn) a compound represented by the following General Formula, wherein a content of aliphatic amine in the particulate nucleating agent obtained by measurement of Procedure A shown below is equal to or more than 3 ppm and equal to or less than 190 ppm based on a mass of the entirety of the particulate nucleating agent. (Procedure A) 4 g of the particulate nucleating agent is put into a test tube for particulate nucleating agent introduction made of glass (outer diameter 30 mm × length 200 mm). In the test tube for particulate nucleating agent introduction, argon gas is introduced under a condition of 37 mL/min for 5 minutes, and then while introducing argon gas at 37 mL/min, in an argon gas atmosphere, the test tube for particulate nucleating agent introduction is heated under a condition of 180°C and 2 hours. A vaporized matter generated by heating is collected in 6 mL of a 600 mg/L methane sulfonic acid aqueous solution in a collection test tube made of glass (outer diameter 15 mm × length 150 mm). The methane sulfonic acid aqueous solution is messed up to 10 mL with a 600 mg/L methane sulfonic acid aqueous solution to prepare a measurement sample. A concentration of aliphatic amine in the obtained measurement sample is measured by using an ion chromatography method. A content (ppm) of the aliphatic amine based on a mass of the entirety of the particulate nucleating agent is calculated based on the obtained measurement value. (in General Formula, R 1 to R 4 each independently represent a hydrogen atom and a straight chain or branched alkyl group having 1 to 9 carbon atoms, R 5 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, m represents 1 or 2, in a case where m is 1, M 1 represents a hydrogen atom or an alkali metal atom, and in a case where m is 2, M 1 represents a group 2 element, Al or Zn)