1,4-Dithiothreitol, molecular biology grade

- Synonyms: DTT, Cleland's reagentr- C4H10O2S2r- M = 154,24 g/molr- CAS [3483-12-3]r- EINECS-No.: 222-468-7r- Solub. in water: (20 ºC): solubler- Melting point: 40 - 43 ºCr- LD 50 (oral, rat): 400 mg/kgr- GHS-signal word: Warningr- GHS-H sentences: H302 - H315 - H319r- GHS-P sentences: P280 - P305+P351+P338 - P321 - P301+P312 - P332+P313 - P501ar- Tariff number: 2930 90 99 99r- Applications: for microbiology.rrSPECIFICATIONSrassay (iodometric): min. 99 %ridentity (IR-spectrum): passes testrr0,1 M in a 1 cm cell at 260 nm: max. 0,5 AUrr0,1 M in a 1 cm cell at 280 nm: max. 0,1 AUrheavy metals (as Pb): max. 0,001 %riron (Fe): max. 5 ppmrDNases, RNases, Proteases : non detectedr