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中华人民共和国衛生部以(56)衛药字第772号通知向全国各省(直轄市)衛生厅(局)及有关單位公佈了磺胺甲基嘧啶的統一規格标准,其規格标准全文如下: 本品在105℃干燥2小时,含C_(11)H_(12)N_4O_2S不得少于99%。 [性狀]本品为白色或微黄白色粉末或結晶,無臭味微苦。在空气中稳定,遇光照射則色逐漸变深。本品1g在20℃时溶于約6250ml水中,在37℃时溶于約3300ml水中。本品易溶于稀矿酸及氫氧化鈉、鉀和銨的溶液中,难溶于丙酮,微溶于醇,極微
The Ministry of Health of the People’s Republic of China promulgated the uniform specification standard for sulfamerazine to Ministry of Health of all provinces (municipalities directly under the Central Government) and relevant agencies by the notice (56) Weiyao Zi No. 772, the full text of its specification is as follows: 105 ℃ drying 2 hours, with C_ (11) H_ (12) N_4O_2S not less than 99%. [Characters] This product is white or yellowish white powder or crystallization, odorless bitter. Stable in the air, the case of light exposure is darker. This product 1g dissolved in about 6250ml water at 20 ℃, soluble in about 3300ml water at 37 ℃. This product is soluble in dilute mineral acid and sodium hydroxide, potassium and ammonium solution, insoluble in acetone, slightly soluble in alcohol, minimal