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Malathion is an organophosphate insecticide which acts as an acetylcholinesterase inhibitor. In the USSR , it was known as carbophos , in New Zealand and Australia as maldison and in South Africa as mercaptothion .
Isomalathion is an impurity found in some batches of malathion. Whereas the structure of malation is, generically, RSP(S)(OCH 3) 2, the connectivity of isomalathion is RSPO(SCH 3)(OCH 3). It arises by heating malathion. Being significantly more toxic to humans than malathion, it has resulted in human poisonings. [1]
Year Name Debut film Other notable films 1952 Sowcar Janaki: Valayapathi: Bama Vijayam (1967), Iru Kodugal (1969) : 1952 Savitri: Kalyanam Panni Paar: Missiamma (1955), Mayabazar (1957), Pasamalar (1961), Thiruvilaiyadal (1965)
Tamil script dating to 500 BCE found at Porunthal site is located 12 km South West of Palani, Tamil Nadu [9] [10] Tamil script dating to 500 BCE found at Kodumanal, Chennimalai near Erode, Tamil Nadu [9] [10] Punch-marked coins of 5th century BCE found at Karur, on the bank of river Amaravathi, is located at 78 km from Tiruchirappalli, Tamil ...
The Arabic letter صٜ has not been used in a widespread manner for representing the Tamil letter ள (representing the sound ). Most historic sources use the letter ۻ for this Tamil letter as well as for the Tamil letter ழ (representing the sound ). For the Tamil letter க, representing the sound [k ~ g], the Arabic letter ك is used.
Old Tamil is the period of the Tamil language spanning from the third century BCE to the seventh century CE. Prior to Old Tamil, the period of Tamil linguistic development is termed as Proto-Tamil. After the Old Tamil period, Tamil becomes Middle Tamil. The earliest records in Old Tamil are inscriptions from between the 3rd and 1st century BCE ...
The Tamil Wikipedia is the largest Wikipedia among Indian languages and the 60th largest Wikipedia by article count (as of 18 December 2024). It is also the first and only Wikipedia of Dravidian origin to possess more than 150,000+ articles (as of 2022).
He graduated with a master's degree and a doctorate in Tamil literature from Annamalai University. He became involved in politics while at the university and joined the Dravidar Kazhagam party in 1944. In 1949, C. N. Annadurai formed the Dravida Munnetra Kazhagam (DMK), and Nedunchezhiyen joined the party, acting as deputy general secretary ...